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Mirrors > Home > HOLE Home > Th. List > wfal | Unicode version |
Description: Contradiction type. |
Ref | Expression |
---|---|
wfal |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wal 124 |
. . 3
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2 | wv 58 |
. . . 4
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3 | 2 | wl 59 |
. . 3
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4 | 1, 3 | wc 45 |
. 2
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5 | df-fal 117 |
. 2
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6 | 4, 5 | eqtypri 71 |
1
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Colors of variables: type var term |
Syntax hints: tv 1
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This theorem was proved from axioms: ax-cb1 29 ax-refl 39 |
This theorem depends on definitions: df-al 116 df-fal 117 |
This theorem is referenced by: wnot 128 notval 135 pm2.21 143 notval2 149 notnot1 150 con2d 151 alnex 174 exmid 186 notnot 187 ax3 192 |
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