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Mirrors > Home > ILE Home > Th. List > wsbc | Unicode version |
Description: Extend wff notation to include the proper substitution of a class for a set. Read this notation as "the proper substitution of class for setvar variable in wff ." |
Ref | Expression |
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wph | |
vx | |
cA |
Ref | Expression |
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wsbc |
Colors of variables: wff set class |
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