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Mirrors > Home > MPE Home > Th. List > Mathboxes > walsc | Structured version Visualization version Unicode version |
Description: Extend wff definition to include "all some" applied to a class, which means is true for all in , and there is at least one in . (Contributed by David A. Wheeler, 20-Oct-2018.) |
Ref | Expression |
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wph | |
vx | |
cA |
Ref | Expression |
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walsc | ! |
Colors of variables: wff setvar class |
Copyright terms: Public domain | W3C validator |