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A neoingardenian ontology of situations

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George W. Bush is a president of the USA. George W. Bush is a wise president of the USA. ... They are heteronomous. Every sentence creates an intentional situation. ... – PowerPoint PPT presentation

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Title: A neoingardenian ontology of situations


1
A neo-ingardenian ontology of situations
  • Pawel Garbacz
  • Catholic University of Lublin
  • Poland

2
A neo-ingardenian ontology of situations
  • Primitive notions
  • Axioms
  • Formalism
  • Comparisons

3
Primitive notions
  • Object
  • Situation
  • (state of affairs)
  • Parthood
  • Occurence
  • Representation

4
Primitive notions
  • LANGUAGE
  • REALITY

George W. Bush is a wise president of the USA.
George W. Bush is a wise president of the USA.
George W. Bush
George W. Bush is a president of the USA.
George W. Bush is wise.
5
Primitive notions
  • sentence
  • REPRESENTS
  • situation
  • OBTAINS IN (IS PART OF)
  • situation

object OCCURS IN
6
Primitive notions Situations
  • Ontology
  • A situation is an entity which unfolds
  • some object.
  • A situation is an entity which reveals
  • the ontic structure of an object which
  • occurs in it.
  • Semantics
  • A situation with respect to a language
  • L is an ontic representation of an
  • atomic sentence ? from L.

7
Primitive notions Situations
  • To nominalise situations or not to nominalise?
  • Nominalise, but be careful!

8
Primitive notions Situations
George W. Bush is a wise president of the USA.
  • LANGUAGE
  • INTENTIONAL
  • WORLD
  • REALITY

That George W. Bush is a wise president of the
USA.
That George W. Bush is a wise president of the
USA.
9
Primitive notions Situations
  • INTENTIONAL SITUATIONS
  • They are heteronomous.
  • Every sentence creates an intentional situation.
  • There are no ontological regularities among
    intentional situations.
  • REAL SITUATIONS
  • They are autonomous.
  • Some sentences do not represent any real
    situation.
  • There are some ontological regularities among
    real situations.

10
Axioms
  • ASSERTED PRINCIPLES
  • REJECTED PRINCIPLES
  • ??? PRINCIPLES

11
AxiomsAsserted
  • (2.1) Every (real) situation is possible.
  • (2.2) If a sentence ? represents a situation x
    and a situation y, then xy.
  • (2.8) If a situation x obtains in a situation y,
    then every object occurring in x occurs in y as
    well.
  • (2.10) If X is the set of all situations in which
    only o1, o2, , on occur, then there is a
    situation which is the least upper bound of X
    with respect to the relation of obtain in.

12
AxiomsRejected
  • (2.3) If a sentence ? represents the situation
    x, then there is a situation represented by the
    sentence It is not the case that ?.

13
Axioms???
  • (2.7?) If a sentence ? represents a situation x
    and a sentence ? represents a
  • situation y, then there is a situation
    represented by the sentence ? and ?.

14
AxiomsWhy are negations not (genuine)
representational sentences?

George W. Bush is not Polish.
George W. Bush is American.
George W. Bush is German.
George W. Bush is Russian.
15
AxiomsAre conjunctions representational
sentences?
  • A possible world is a maximal ideal of situations
    in the set of all situations.
  • A set X of situations is an ideal of situations
    iff
  • (i) every part of every situation from X belongs
    to X,
  • (ii) for every pair x, y of situations from X,
    the join of x and y belongs to X.

16
AxiomsWhat is relation?
  • George Bush George W. Bush
  • Geroge Bush is 70 years old. George W. Bush is
    50 years old.
  • George Bush is 6 feet tall. George W. Bush is
    7 feet tall.
  • George Bush knows English, George W. Bush
    knows English.
  • German, and Russian.
  • ... ...
  • ... ...

The relation between George Bush and George W.
Bush
17
AxiomsWhat is relation?
  • (2.10) If X is the set of all situations in which
    only o1, o2, , on occur, then there is a
    situation which is the least upper bound of X
    with respect to the relation of obtain in.

18
Formalism
  • ltS, O, ?, Ogt
  • (i) S?O?,
  • (ii) ??S?S,
  • (iii) lt ?\,
  • (iv) O S ? ?(O).

Set of objects
Set of situations
Situation parthood
Object(s) in situation
19
FormalismAuxiliary definitions
  • X?Y ? ?x?X ?y?Y x?y.
  • At(S) x?S ??y?S yltx.
  • S(o) x?S o?O(x).
  • IS(o1, o2, , on, W) x?W O(x)o1, o2, ,
    on.

20
Formalism ltS, O, ?, Ogt
  • (C1) The relation ? is a partial order.
  • (C2) W??,
  • where W is the set of all maximal ideals in
    ltS, ?gt
  • (C3) S?W.
  • (C4) If x?y, then O(x)?O(y).
  • (C5) ?x?S O(x)??.
  • (C6) ?o?O S(o)??.
  • (C7) If IS(o1,, on, W)??, then ?y?W ysup?
    IS(o1,, on, W).
  • ?
  • ? 2.1 and 2.7
  • 2.1
  • 2.8
  • definition of situation
  • definition of situation
  • 2.10

21
FormalismHow expressive is it?
  • structure of object in world
  • range of object in world
  • intrinsic structure of object in world
  • intrinsic range of object in world
  • existence of object
  • essence of object
  • ltS(o)?W, ?(S(o) ?W) gt
  • sup S(o)?W
  • ltIS(o, W), ?IS(o, W)gt
  • sup IS(o, W)
  • W(o) W?W S(o)?W??.
  • x?Ess(o) ? ?W?W(o) x?IS(o, W).

22
FormalismDependence
  • An object o1 strongly depends on an object o2 in
    a possible world W iff
  • o1 exists in W and S(o1)?W?S(o2)?W.
  • An object o1 partially depends on an object o2 in
    a possible world W iff
  • o1 exists in W and (S(o1)?W)?(S(o2)?W)??.
  • An object o1 weakly depends on an object o2 in a
    possible world W iff
  • o1 exists in W and S(o1)?W?S(o2)?W.
  • An object o1 strongly (partially, weakly) depends
    on an object o2 iff o1 strongly
  • (partially, weakly) depends on o2 in every
    W?W(o1).
  • An object is strongly (weakly) independent in O
    iff it does not weakly (strongly)
  • depend on any other object from O.

23
FormalismExtensionalist NIOSO
  • (C9) If x?At(S) or y?At(S), then xy ? ?z (zltx ?
    zlty).

24
FormalismLeibnizian NIOSO
  • (C9) If ?W?W (S(o1)?WS(o2)?W), then o1o2.
  • (C10) If S(o1)?WS(o2)?W??, then o1o2.

25
ComparisonsRepresenting and truthmaking
  • REPRESENTATION
  • One sentence represents at most one
  • situation.
  • Tautologies do represent.
  • Existential generalisations do not represent.
  • TRUTH MAKING
  • One sentence is made true by more than one truth
    maker.
  • There are no truth-makers for tautologies.
  • (Some) existential generalisations have
    truth-makers.

26
ComparisonsWhy do existential generalisations
not represent?

John runs quickly.
Someone runs quickly.
Someone does something quickly.
Someone does something somehow.
27
ComparisonsNIOS and mereology
  • SSP
  • (i) that John runs quickly
  • (ii) that John runs
  • Not iii.
  • There is no situation iii such that
  • iii?i
  • and
  • iii and ii do not overlap.
  • General Axiom of Sum
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