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Mirrors > Home > ILE Home > Th. List > biimpac | Unicode version |
Description: Inference from a logical equivalence. (Contributed by NM, 3-May-1994.) |
Ref | Expression |
---|---|
biimpa.1 |
Ref | Expression |
---|---|
biimpac |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biimpa.1 | . . 3 | |
2 | 1 | biimpcd 158 | . 2 |
3 | 2 | imp 123 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: gencbvex2 2733 ordtri2or2exmidlem 4441 onsucelsucexmidlem 4444 ordsuc 4478 onsucuni2 4479 poltletr 4939 tz6.12-1 5448 nfunsn 5455 nnaordex 6423 th3qlem1 6531 ssfilem 6769 diffitest 6781 nqnq0pi 7246 distrlem1prl 7390 distrlem1pru 7391 eqle 7855 flodddiv4 11631 |
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