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Predicate Logic

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Syntax of FOL: Basic elements<br />

Constants:<br />

KingJohn, 2, NUS,...<br />

<strong>Predicate</strong>s :<br />

Brother, >,...<br />

Functions:<br />

Sqrt, LeftLegOf,...<br />

Variables:<br />

x, y, a, b,...<br />

Connectives:<br />

¬, ⇒, ∧, ∨, ⇔<br />

Equality:<br />

=<br />

Quantifiers:<br />

Universal Quantifier: ∀<br />

Existential Quantifier: ∃<br />

Artificial Intelligence: <strong>Predicate</strong> <strong>Logic</strong> Slide: 11

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