=Paper= {{Paper |id=Vol-1283/paper27 |storemode=property |title= When an Action is an Intentional Omission |pdfUrl=https://ceur-ws.org/Vol-1283/paper_27.pdf |volume=Vol-1283 |dblpUrl=https://dblp.org/rec/conf/ecsi/Paprzycka14 }} == When an Action is an Intentional Omission == https://ceur-ws.org/Vol-1283/paper_27.pdf
           When an Action is an Intentional Omission

                                    Katarzyna Paprzycka

               Institute of Philosophy, University of Warsaw, Warsaw, Poland
                                 kpaprzycka@uw.edu.pl



       Abstract. I use the normative theory of intentional omissions to argue that
       ordinary uses of ‘ s intentionally’ are systematically ambiguous. There are
       occasions where they might be used to attribute intentional omissions rather
       than intentional actions. One can thus explain a number of puzzles that have
       been taken to be puzzles about the concept of intentional action: the Knobe ef-
       fect, the connection between foresight and intentionality (in legal contexts), the
       Butler problem, the compatibility of moral luck with intentionality, the re-
       quirement of ability to do otherwise, the intentionality of akrasia.

       Keywords: ability to do otherwise, akrasia, Butler problem, foresight, Frank-
       furt-type cases, intention, intentional action, intentional omission, knowledge,
       Knobe effect, luck


1      Introduction

We do some things intentionally. Sometimes we also intentionally fail to do things. It
is natural to think that in the former case we are speaking of intentional actions, while
in the latter of intentional omissions. Whether or not omissions are actions, it is natu-
ral to think that the concept of intentionality is the same.
   In this paper, I will sketch how to use the normative theory of intentional omis-
sions to explain a number of puzzles about the concept of intentional action. In §4.1, I
show how to explain the so-called Knobe effect (according to which people’s attribu-
tions of intentional action depend on normative context). In §4.2, I sketch how this
explanation can be extended to account for the connection between foresight and
intentionality (in legal contexts). In §4.3, I explain the so-called Butler problem. In
§4.4, I show how certain types of moral luck are compatible with intentionality. I also
show how those types of cases are the flip-side of Frankfurt-type cases. The account
can further explain the intentionality of akrasia (§4.5).
   I should make clear that the paper does not pretend to offer a fully worked out ar-
gument for any of the claims I make. I believe that the main idea is worth advertising
and worth defending, though a proper defense will need to be done on another occa-
sion.
2         The Normative Account of Omission

On the normative account of intentional omission ([19], [23], [51, 52], [56], cf. also
[55], [58]):
     (O)  intentionally omits to  if and only if (a)  should  (e.g.  has a duty to ,
         it is reasonable to expect of  that  ), (b)  is able to , (c) it is not the
         case that  s, and (d)  is aware of (a), (b), (c).
Interestingly, the normative account of intentional omission has often been thought to
require only the agent’s awareness (true belief) or knowledge about the conditions of
the omission (see [23], [50, 51, 52], [55], cf. [9], [47, 48]). I have argued elsewhere
[44, 45] that there are good reasons for the normative theorist to require knowledge
and not intention for the intentionality of the omission. This is of course not to say
that some intentional omissions may not be accompanied by intentions not to do what
one omits to do. The point is, however, that there are cases of intentional omissions
where the agent does not have any relevant intention.
   I will not argue for the normative account of intentional omissions. There are many
problems that the account needs to sort out. The notion of ability, for example, is so
unclear that one may reject any account that does not spell it out further ([4], [10],
[14]). McGrath [33], for example, thinks that the notion of reasonableness is hopeless-
ly confused (cf. [4], [19], [50, 51, 52]). She is right that it is confused, though not
hopelessly so [40, 43]. In any case, much the same could be said about the concept of
reasons prior to a theoretical treatment.
   Let me mention and briefly respond to one problem.1 Suppose that Chris tries to do
something that he can and should do but fails to do it. In such a situation, clearly the
addition of Chris’ knowledge that he failed what he could and should have done does
not amount to making the failure intentional. There are at least two ways to respond.
One would be to simply exclude such cases by the addition of a further condition (O-
e) that the agent did not try to . There are legal codes (for example, the Polish crimi-
nal code) where this is done almost explicitly. Aside from the requirement of
knowledge (foreseeability) one requires acquiescence to the foreseen failure.2 There is
a legal debate what acquiescence means. On some interpretations, it is some sort of
volitional state. On others, it simply means that the agent did not try (or did not try
reasonably hard enough) to fulfill the duty.
   On the other hand, there are surely cases of intentional omissions to fulfill the duty
to  where the agent tried to . I tried to file the taxes, I started filling out the forms. I
just did not complete or send them out in the end. Perhaps I lied on the couch all day
and could not put down a novel I was reading. I knew I would miss the deadline if I
don’t put it to a side. It seems to me that in such a case I intentionally omitted to file
the taxes after all even though I may have tried to file them. However, suppose that
the reason why I did not send out the tax forms in the end is that as I started to calcu-

1
    I want to thank one of the reviewers for pointing it out.
2
    “A prohibited act is committed intentionally, if the agent has the intention of committing it,
      i.e. either wants to commit it or, having foreseen the possibility of committing it, acquiesces
      to such a possibility.” (Kodeks Karny Art. 9. §1, my translation)
late the taxes I owe, I suffered a cardiac arrest and was taken to the hospital. I knew
all along that I am missing the deadline, which only aggravated my state. In this case,
however, it is arguable that I was unable to fulfill the duty (i.e. that condition (O-b)
was not satisfied). One suspicion that a normative theorist may harbor about cases of
failed tryings is that such failures indicate that the condition of ability may not have
been satisfied after all. This would, however, demand a careful investigation of the
concept of ability.
    Let me stop here and bag all the problems for the normative account of intentional
omissions. I acknowledge that the bag exists. The ideas I put forward depend on an
appropriate way of sorting out the problems in the bag. I want to argue, however, that
the normative theory of intentional omissions promises to offer results so interesting
that they make it worthwhile taking another look at the problems in the bag in the
hope of solving them.
    Before proceeding it will be useful to emphasize that there is no agreement on the
concept of intentional action [28]. For my purposes here, we can think that
    (I)     performed an intentional action of ing just case: (a)  ed, (b)  was able
           to  (had requisite skills, cf. [24], [34]), (c)  intended to  (or to do some-
           thing closely related, see [12]), and (d)  ed because of the intention (cf.
           [18], [21, 22], [57]).
If we accept (O) and (I) then the intentionality of an omission is fundamentally differ-
ent from the intentionality of an action. In intentional action, we execute our own
commitments, the commitments we have undertaken in intending to do something
[11, 12]. In intentional omission, we fail to act on commitments we acknowledge,
paradigmatically commitments placed on us by others in their normative expectations
of us [11], [40], [42, 43].


3         Can an Action Be an Intentional Omission?

There are many concepts of omissions. Some are ontological: e.g. Clarke [15, 16, 17]
thinks of omissions as absences of actions. At least some omissions are plausibly
thought of as absences of events. John’s failure to water plants can be argued not to be
identical to the plant’s wilting.3 If one accepts the general claim that omissions are not
events then an action can never be an omission. The normative concept of omission is
not an ontological concept, however. To say that an agent omitted to do something is
to say that she failed to do what she should have done. Even if there is a legitimate
ontological concept of omissions that cannot be applied to events, this is compatible
with the fact that the normative concept of omission can be applied to events.4

3
  One may argue that the omission is actually John’s action of doing something else. This is a
   line one can push in some cases but not so obviously in others. Is John’s omission to come
   to a meeting identical to his (presumably nonaction) of oversleeping? In any event, I do not
   wish to defend any view here. My concern is with a non-ontological notion of omission.
4
  One may argue that all omissions are actions and that thus intentional omissions will not be
   different from intentional actions. (I thank another reviewer for pushing this.) The premise


                                                             3
   In fact, I want to show that on the normative theory of intentional omissions, some
actions (ings) can be described as the agent’s intentional omissions. Consider a neg-
ative duty, a duty not to . It is possible to fail to do what is required by a negative
duty. In general, we can apply the conditions of (O) to such a case in the following
way.  intentionally omits not to  just in case: (a)  should not , (b)  is able not to
, (c)  s (and so fails not to ), and (d)  is aware of (a), (b), (c).
   One may have a number of reservations here. Is it at all possible to omit not to do
something? If one accepts the normative theory of omissions, there is prima facie no
reason why it should not be possible. The theory can be applied to such a case. This is
not to say, however, that we go about attributing omissions not to  to one another
(not explicitly at any rate).
   In fact, there are very good reasons why such descriptions will likely not be found
in natural languages (not just English). For these descriptions contain a double nega-
tion. One of the negations is present in the content of the negative duty while the other
is part and parcel of the concept of omission (to omit to  is not to  after all). Indeed,
given the general linguistic pressures to cancel double negations, 5 it might be argued
that when  intentionally omits not to ,  in fact intentionally s. Here is a simple
argument (I have dubbed it Γ) that shows how to do so.
   (1)    intentionally omits not to . So:
   (2)   what  intentionally does not do is not to . So:
   (3)    intentionally does not not . So:
   (4)    intentionally s.
The argument relies on seemingly intuitive principles:
   (Γ1) If  intentionally omits (not) to  then  intentionally does not (not-).
   (Γ2) If  intentionally does not not- then  intentionally s.
(Γ2) simply removes the awkward double negation. While (Γ1) appears to be a special
case of the claim that if  omits to  then  does not , it is in fact problematic. If one
takes the intention condition to be necessary for intentional action (I) while accepting
the normative theory of intentional omissions (O), which requires only the satisfaction
of the knowledge condition, then one has a reason to deny (Γ1) [44].
   If the account is accepted thus far, we reach the conclusion that ascriptions ‘ s
intentionally’ could be systematically ambiguous. I will argue now that this theoreti-
cal possibility generated by the normative theory of intentional omission can actually
cast light on a number of troubling phenomena. Philosophers of action have typically

   here is debatable but the conclusion does not follow. I believe that both actions and omis-
   sions are expressions of agency. It does not follow that the concept of intentional action and
   the concept of intentional omission are the same. A normativist could even restrict the con-
   cept of omission so that it applies only to actions (by making condition (O-c) agentive).
   Given such a restriction, all intentional omissions would be intentional actions, but it would
   still not be the case that all intention omissions to  were intentional actions of not ing.
   This is because the intentional omissions to  could be intentional actions under a different
   description than that of ‘not ing’ [6], [18], [44, 45]. See also footnote 6.
5
  Such pressures are present in most natural languages, even those that do tolerate and in fact
   demand double negatives in certain well-constrained grammatical contexts.
assumed those problems to be tied to intentional action. I will argue that they can be
fruitfully thought of in terms of intentional omissions.


4        When  s intentionally: Intentional Action or Intentional
         Omission?

4.1      The Knobe Effect

In Knobe’s classic study [30], people were presented with the harm vignette:
   The vice-president of a company went to the chairman of the board and said, “We
   are thinking of starting a new program. It will help us increase profits, but it will
   also harm the environment.”
   The chairman of the board answered, “I don’t care at all about harming the envi-
   ronment. I just want to make as much profit as I can. Let’s start the new program.
   They started the new program. Sure enough, the environment was harmed.”
The subjects were supposed to say how strongly they agreed or disagreed with the
claim that the chairman intentionally harmed the environment. Most subjects (82%)
agreed with it:
    (A) The chairman harms the environment intentionally.
Knobe presented an alternative version of the story to other subjects, which differed
from the original only in that the word ‘help’ was put in place of ‘harm’ in the three
marked places and in that ‘and’ was substituted for ‘but’. Most people (77%) who
read the help vignette were inclined to disagree with the claim that the chairman in-
tentionally helped the environment:
      (~B) It is not the case that the chairman helps the environment intentionally.
   The asymmetry in intentional action attributions is surprising because the two cas-
es seem to be fully symmetrical with regard to the conditions that have been taken to
be relevant in orthodox theories of intentional action (I). The chairman seems to be in
exactly the same state of mind in both cases, the way in which the state of mind re-
lates to the ensuing events and the ultimate result (the harming/helping the environ-
ment) again does not seem to be different. The most striking difference between the
cases concerns the normative context. Since such features of the normative context
have been largely thought to be irrelevant to the orthodox notion of intentional action,
the results are puzzling, cf. [31].
   However, the orthodox theories of intentional action (I), which require an intention
(or more generally a pro-attitude) toward the performed action can explain why peo-
ple are inclined to assert (~B). The chairman neither intends nor wants to help the
environment. Indeed, when people are asked to explain why they assert (~B), they do
cite precisely the fact that the chairman did not intend or did not want to help the en-
vironment [38]. The orthodox theories of intentional action are thus capable of ex-
plaining one side of the puzzle. They fail in explaining why people are inclined to
assert (A). In fact, when people are asked why they hold (A), they tend to cite the fact
that the chairman knew the environment would be harmed [38], cf. [7, 8], [46].


                                                           5
   I have argued [44, 45, 46] that one can accept what I have called the omissions ac-
count, which conjoins the orthodox theory of intentional action and the normative
theory of intentional omission. The normative theory of omission provides a natural
explanation of the harm case in the Knobe effect. If we look for intentional omissions
in Knobe’s cases, we will find one in the harm case: the chairman commits an inten-
tional omission not to harm the environment. Presumably, he has a duty not to harm
the environment (Oa). It is within his power not to harm the environment (Ob), for it
is within his power not to start the program. He does harm the environment (Oc), i.e.
fails to do the duty.6 His omission is intentional because he knows all of this (Od).7
Thus:
    (C) The chairman intentionally omits (to do his duty) not to harm the environ-
        ment.
As argued (§3), there are reasons to think that the problematic intentional action at-
tribution (A) is a disguised form of the intentional omission attribution (C). We can
use argument form Γ to derive (A) from (C). Since the chairman intentionally omits
(to do his duty) not to harm the environment (C), what he intentionally does not do is
not to harm the environment. In other words, he intentionally does not not-harm the
environment. When we cancel the awkward double negation, we obtain the claim that
he intentionally harms the environment (A).
    However, it would be erroneous to think that in assenting to the claim that the
chairman intentionally harmed the environment, people attribute an intentional action
to the chairman. The concept of intentionality is different. The intentionality of action
requires an intention or pro-attitude (I), while the intentionality of omissions requires
knowledge (O)8. Indeed, as already mentioned, when people are asked why they claim
that the chairman intentionally harmed the environment they appeal to the fact that the
chairman knew that the environment would be harmed [38]. This is just what we
would expect if the attribution of intentional harming were an intentional omission
rather than an intentional action.




6
  Note that one can consistently think that he harms the environment without thinking that he
   performs an intentional action of harming the environment. He does something else inten-
   tionally, i.e. he intentionally starts the program, which causes the environment to be harmed.
7
  One might worry that the story does not tell us that the chairman knows that he should not
   harm the environment (I thank one reviewer for noting this). This point can be granted,
   though it is natural to think of such knowledge as part of common knowledge. At any rate, I
   claim that those people who hold that the chairman intentionally harmed the environment
   (and not all do [38], cf. [28]), believe that he had the requisite knowledge.
8
  One may object that knowledge suffices only for the claim that the agent knowingly ed, but
   not for the claim that he ed intentionally. I have argued that there are reasons to think that
   in the case of omissions, their intentionality is tantamount to their being done knowingly
   [44, 45]. I have also shown [44] how to explain interesting empirical results regarding the
   attributions of ‘knowingly’ and ‘intentionally’ in these contexts (cf. [1, 2, 3], [29, 30], [38]).
4.2        Intentionality, Intention, and Foresight: Oblique Intention
The results reached above can be extended to explain quite generally why foresight
(without intention) is sufficient for intentionality in some cases [9], [24], [26]. In cas-
es where the agent should not , is able not to , does  having foreseen it, the agent
commits an intentional omission not to . The resultant ing is intentional but it need
not be intentional under the description “ performed an intentional action of ing”
but rather under the description “ committed an intentional omission not to .”
   Note too that the connection between intentionality and foresight is likely to be
very common in law. This is because lawyers are mostly concerned with negative
duties designed to prevent harm. Failure to abide by those duties will be intentional as
long as the knowledge condition is satisfied. 9 Legal theorists sometimes use the con-
struct “oblique intention” to cover such cases. If intentional omissions are understood
properly, the motivation for introducing oblique intentions will be removed, cf. [12].


4.3        The Butler Problem
Butler [13] imagines Brown hoping to throw a six and doing so. We would not say
that she did so intentionally (not if she uses regular dice). However, suppose that
Brown uses a revolver with a six-bullet chamber, in which she put only one bullet and
then randomly spun it. If she aims the gun at Smith hoping to kill him and does suc-
ceed, we would say that she killed Smith intentionally. We are inclined to say:
     (D) Brown kills Smith intentionally.
     (~E) It is not the case that Brown throws a six intentionally.
Once again this is surprising. Luck has been thought to exclude intentionality ([24],
[34]). The chanciness of a dice roll or of a bullet chamber spinning prima facie speaks
against attributing an intentional action to Brown whether in the morally loaded or
neutral case.
   When we look at the cases in search for intentional omissions, we will find that we
can ascribe an intentional omission to Brown in the killing case:
     (F)    Brown intentionally omits not to kill Smith.
All of the conditions in (O) are satisfied: (a) Brown has the duty not to kill Smith, (b)
it is within her power not to kill Smith (it suffices that she not fire or touch the gun),
(c) she does kill Smith (again one need not think that she kills Smith intentionally; she
presses the trigger intentionally, which causes the death of Smith), (d) she is aware of
all of this.
    Once again we can use Γ to transform (F) into (D). Since Brown intentionally
omits not to kill Smith (F), she intentionally does not not-kill Smith. When we cancel
the awkward double negation, we obtain the result that she intentionally kills Smith.
We thus arrive at the claim we are intuitively inclined to give (D). Because there are
9
    Indeed, there are a number of alternative philosophical theories of intentional action that em-
      body the idea that foreseen but unintended consequences of intentional action are brought
      about intentionally (cf. [12], [21], [57]). Those theories typically have problems with ac-
      counting for Knobe’s help scenario.


                                                                 7
reasons to doubt the legitimacy of deriving (D) from (F), we have a solution to the
Butler problem (~D, ~E, F), but at the same time an explanation of the folk inclination
to hold (D).
   As Lowe [32] was the first to predict [35], if the throwing of a six were to have the
consequence of Smith’s dying (e.g. when a bomb will explode when Brown throws a
six, of which she is aware), then people will tend to say that Brown intentionally
killed Smith (in fact 87.5% of people claim so [36, 37]). On the above account, it is
also rational (pace (O)) to claim that Brown intentionally omitted not to throw a six,
though it is not rational (pace (I)) to claim that she performed an intentional action of
throwing a six. If ‘ s intentionally’ is ambiguous in the way I suggest that it is, then
one would expect people to be torn between assenting to the claim “Brown intention-
ally threw a six” (as a claim about the intentional omission not to throw a six) and
denying10 it (as a claim about the intentional action of throwing a six). Indeed, 55%
people do claim that Brown intentionally threw a six in a Lowe-type case [36, 37].


4.4      Dual Powers, Moral Luck, Frankfurt-Type Cases

Philosophers have sometimes thought that intentional action requires dual powers: we
need to be able to do what we do and we need to be able to do otherwise [5, 20]. The
notion of power or ability is extremely problematic. For the purposes of argument (as
a first approximation), let me understand ability to  in terms of reliability to . I am
able (not) to  if I am reliable in fulfilling the task (not) to .
   For most ordinary action-types we have dual powers. I am able to raise an arm (I’m
reliable in fulfilling the task to raise the arm) as well as I am able not to raise the arm
(I’m reliable in fulfilling the task not to raise the arm). But other combinations are
possible. Consider someone at early stages of Parkinson’s disease, who cannot control
the tremor of his hands. Such a person is no longer reliable in performing many man-
ual tasks, such as pressing a certain button. The person will occasionally hit it but not
reliably. In the wanted sense, he is unable to hit the button. However, he may very
well be able not to hit the button. (We would think that he is unsuited for the job of a
traffic controller, which requires precise button pressing, but that he is perfectly suited
for the job of a night guard in an aquarium, which involves the duty not to press but-
tons that initiate the removal of water from the tanks, for example.)
   Intentional action has been thought to require the agent’s ability, skill, reliability to
 [24], [34]. It is fruitful to think that the ability to do otherwise is a necessary condi-
tion of intentional omission, not of intentional action. We should observe that, on the
normative theory, intentional omission requires the ability to do otherwise. An inten-
tional omission to  (which is a not ing after all) requires the ability to  (i.e. to do
other than what one does). An intentional omission not to  (which is a ing) requires
the ability not to  (i.e. to do other than what one does). John intentionally omits to
feed a cat only if John does not feed it but was able to feed it (i.e. was able to do oth-
erwise). The chairman intentionally omits not to harm the environment only if he does

10
     In a regular game of dice with no grave consequences attached, 90% of people deny the
      claim that an agent intentionally throws a six [36, 37].
harm the environment and he was able not to harm the environment (i.e. was able to
do otherwise).
   We have seen reasons to think that when we use the form of words ‘ s intention-
ally’ we may have in mind that  performed the intentional action of ing or that 
committed the intentional omission not to . In cases where the agent has dual pow-
ers, depending on whether other conditions of (I) and (O) are fulfilled, the agent may
have performed an intentional action or committed an intentional omission or both. If
the agent is not able to  but does as a matter of luck  (Butler-type cases), then as
long as he is able not to  (and the other conditions of (O) are satisfied), the ascription
of intentional ing is an ascription of an intentional omission not to . This shows in
a general way how luck is compatible with intentionality.

                             (Dual powers cases)        (Butler cases)     (Frankfurt cases)
      “ s intentionally”   intentional action     intentional omission   intentional action
                             intentional omission
       is able to                                                             
       is able not to                                                         

   The third possibility of ascribing intentional ing involves cases where the agent is
able to  but is not able to do otherwise. Such cases have been made famous by
Frankfurt [20] who envisaged a counterfactual intervener taking over control over the
course of events had the agent decided to do other than he does. The fact that the
agent is unable to do otherwise shows at most that she cannot commit an intentional
omission. However, if the other conditions of (I) are satisfied, she may well perform
an intentional action.
   If one understands the dual nature of intentionality, one will see that the connection
between responsibility and intentionality is doubly secured, so to speak. It is relatively
immune to luck (Butler cases) and to the lack of ability to do otherwise (Frankfurt
cases).


4.5      Akrasia
The normative account of intentional omission can also answer the question why
akratic behavior is intentional. Akrasia can conceptualized in various ways, but one
way to capture its core is to think that it involves a failure to do carry out the com-
mitment that one has undertaken whether in intending to do something or in judging
that doing something would be the rational thing for one to do. The paradigmatic
cases of omissions are cases of failures to do what is required by an external commit-
ment typically placed by another agent. But clearly it is also possible to omit to do
what is required by one’s own commitment (the commitment engendered in one’s
intending to do something). This is what happens in akrasia.
   The normative theory of intentional omission does not aim to answer all questions
about akrasia but it can answer why akratic action is intentional without the agent’s
having an intention to do what she does. If akratic behavior is covered by the inten-
tionality of omission then all that is required is the agent’s knowledge of what she is


                                                                 9
required to do (she knows what she intends), of the fact that she is able to do what she
is required to do (arguably she could not intend to do it unless she believed that she is
able to do it). What is further required is her knowledge that she does not do what she
resolved to do.


5      The Social Nature of Intentionality

I have argued that the normative theory of intentional omission shows a great deal of
promise in explaining puzzling phenomena usually taken to lie within the purview of
theories of intentional action.
   It might be thought that there is something disconcerting about accepting such dif-
ferent accounts of intentional action (I) and of intentional omission (O). But this dual-
ity is not as disconcerting as one might initially think [27], [45]. Rather it reveals the
fact that agentive concepts are at roots social concepts [25], [42, 43], [53, 54]. The
normative concept of omission is a social concept par excellence. It embodies sensi-
tivity to others and their legitimate normative claims and expectations of the agent. In
intentional omission, we fail to act on commitments we acknowledge, paradigmatical-
ly commitments placed on us by others in their normative expectations of us. By con-
trast, intentional action involves the execution of the agent’s own commitment (the
intention). Agentive concepts thus involve both types of commitments: external
commitments (normative expectations) as well as internal commitments (intentions)
[11, 12], [44, 45, 42, 44]. What appears to be an unwelcome duality is rather a reflec-
tion of the fact that agency is not just individual (whether in the singular “I” or the
plural “we” sense) but also interpersonal – it exhibits what Brandom [11] calls the I-
Thou structure [39, 41]. As agents, we are thrown into the social world, which lays a
variety of claims on us. We need to build ourselves as agents against such back-
ground.
   I have claimed that what appears to be the bastion of individualism [39, 41, 49] in
philosophy of action, viz. the concept of intentional action, should be buttressed by
the nonindividualist concept of intentional omission. To fully account for our uses of
‘ s intentionally’, we need to invoke not just the concept of intentional action but
also the normative – and, at roots, social and interpersonal – concept of intentional
omission.


Acknowledgements. I want to thank three anonymous reviewers for many interest-
ing, useful and detailed critical comments. I have tried to accommodate most of them
in the paper, though because of the length restrictions I am unable to do full justice to
them. The project has been financed by an NCN grant (DEC-2012/05/B/HS1/02949).
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