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Mirrors > Home > MPE Home > Th. List > Mathboxes > wirreflexive | Structured version Visualization version GIF version |
Description: Extend wff definition to include "Irreflexive" applied to a class, which is true iff class R is an irreflexive relation over the set A. See df-irreflexive 46472. (Contributed by David A. Wheeler, 1-Dec-2019.) |
Ref | Expression |
---|---|
cA | class 𝐴 |
cR | class 𝑅 |
Ref | Expression |
---|---|
wirreflexive | wff 𝑅Irreflexive𝐴 |
Colors of variables: wff setvar class |
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