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Mirrors > Home > ILE Home > Th. List > wex | GIF version |
Description: Extend wff definition to include the existential quantifier ("there exists"). |
Ref | Expression |
---|---|
wph | wff 𝜑 |
vx | setvar 𝑥 |
Ref | Expression |
---|---|
wex | wff ∃𝑥𝜑 |
Colors of variables: wff set class |
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