Predicate Logic

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Atomic sentences Term : function (term 1 ,...,term n ) or constant or variable Atomic sentence : predicate (term 1 ,...,term n ) or term 1 = term 2 E.g., Brother(KingJohn,RichardTheLionheart) > (Length(LeftLegOf(Richard)), Length(LeftLegOf(KingJohn))) Artificial Intelligence: Predicate Logic Slide: 12
Complex sentences Complex sentences are made from atomic sentences using connectives, examples: ¬S S 1 ∧ S 2 S 1 ∨ S 2 S 1 ⇒ S 2 S 1 ⇔ S 2 E.g. Sibling(KingJohn,Richard) ⇒ Sibling(Richard,KingJohn) >(1,2) ∨ ≤ (1,2) >(1,2) ∧ ¬ >(1,2) Artificial Intelligence: Predicate Logic Slide: 13
Page 1 and 2: Chapter 08 Predicate Logic Instruct
Page 3 and 4: Acknowledgment The slides in this P
Page 5 and 6: Why FOL? Pros and cons of propositi
Page 7 and 8: Prepositional Logic: Examples Sente
Page 9 and 10: Predicate Logic: Examples Ability o
Page 11: Syntax of FOL: Basic elements Cons
Page 15 and 16: Universal quantification ∀ Ever
Page 17 and 18: Existential quantification ∃ S
Page 19 and 20: Properties of quantifiers ∀x ∀
Page 21 and 22: The kinship domain: Brothers are
Page 23 and 24: Predicate Logic: Representation 1.
Page 25 and 26: Predicate Logic: Representation 6.
Page 27 and 28: Predicate Logic: Representation Gi
Page 29 and 30: Predicate Logic: Proof ¬loyalto(Ma
Page 31 and 32: Predicate Logic: Exception Excepti
Page 33 and 34: Predicate Logic: Exception Excepti
Page 35 and 36: Predicate Logic: Function + Computa
Page 43 and 44: Universal instantiation (UI) Every
Page 45 and 46: Reduction to propositional inferenc
Page 47 and 48: Resolution Convert to clause form,
Page 49 and 50: Resolution 1. Remove using the equ
Page 51 and 52: 2. Move ¬ next to terms: Resolutio
Page 53 and 54: Resolution 4. Move qualifier to lef
Page 55 and 56: Resolution 6. Remove every qualifie
Page 57 and 58: 7. Convert to CNF. = Resolution [¬
Page 59 and 60: Resolution 9. Add every qualifier t
Page 61 and 62: Substitution and Unification X: Va
Page 63 and 64:
Substitution and Unification Union
Page 65 and 66:
Substitution and Unification Union
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Substitution and Unification mgu:
Page 69 and 70:
Dis-set: Example: Substitution and
Page 71 and 72:
Substitution and Unification Claus
Page 73 and 74:
Substitution and Unification Resol
Page 75 and 76:
Substitution and Unification Proof
Page 77 and 78:
# 1 2 3 4 5 6 7 8 9 10 11 Clauses m
Page 79 and 80:
Homeworks Prove: ¬alive(Marcus, no
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Predicate Logic

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