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Mirrors > Home > ILE Home > Th. List > Mathboxes > bdfal | Unicode version |
Description: The truth value ![]() |
Ref | Expression |
---|---|
bdfal |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bdtru 14206 |
. . 3
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2 | 1 | ax-bdn 14191 |
. 2
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3 | df-fal 1359 |
. 2
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4 | 2, 3 | bd0r 14199 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-bd0 14187 ax-bdim 14188 ax-bdn 14191 ax-bdeq 14194 |
This theorem depends on definitions: df-bi 117 df-tru 1356 df-fal 1359 |
This theorem is referenced by: bdnth 14208 bj-axemptylem 14266 |
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