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Mirrors > Home > ILE Home > Th. List > biadani | Unicode version |
Description: An implication implies to the equivalence of some implied equivalence and some other equivalence involving a conjunction. (Contributed by BJ, 4-Mar-2023.) |
Ref | Expression |
---|---|
biadani.1 |
Ref | Expression |
---|---|
biadani |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm5.32 450 | . 2 | |
2 | biadani.1 | . . . 4 | |
3 | 2 | pm4.71ri 390 | . . 3 |
4 | 3 | bibi1i 227 | . 2 |
5 | 1, 4 | bitr4i 186 | 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 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: biadanii 608 |
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