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Mirrors > Home > MPE Home > Th. List > xorneg | Structured version Unicode version |
Description: ![]() |
Ref | Expression |
---|---|
xorneg |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xorneg1 1361 |
. 2
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2 | xorneg2 1362 |
. . 3
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3 | 2 | con2bii 332 |
. 2
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4 | 1, 3 | bitr4i 252 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() |
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 185 df-xor 1352 |
This theorem is referenced by: hadnot 1436 had0 1446 |
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