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| Mirrors > Home > MPE Home > Th. List > Mathboxes > wirreflexive | Structured version Visualization version Unicode 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 42511. (Contributed by David A. Wheeler, 1-Dec-2019.) |
| Ref | Expression |
|---|---|
| cA |
|
| cR |
|
| Ref | Expression |
|---|---|
| wirreflexive |
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| Colors of variables: wff setvar class |
| Copyright terms: Public domain | W3C validator |