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Mirrors > Home > MPE Home > Th. List > Mathboxes > ifpnim1 | Structured version Visualization version Unicode version |
Description: Restate negated implication as conditional logic operator. (Contributed by RP, 25-Apr-2020.) |
Ref | Expression |
---|---|
ifpnim1 | if- |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ifpnot23c 37829 | . 2 if- if- | |
2 | ifpim3 37841 | . 2 if- | |
3 | 1, 2 | xchnxbir 323 | 1 if- |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 if-wif 1012 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-ifp 1013 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |