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Mirrors > Home > ILE Home > Th. List > jcai | Unicode version |
Description: Deduction replacing implication with conjunction. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
jcai.1 | |
jcai.2 |
Ref | Expression |
---|---|
jcai |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | jcai.1 | . 2 | |
2 | jcai.2 | . . 3 | |
3 | 1, 2 | mpd 13 | . 2 |
4 | 1, 3 | jca 300 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia3 106 |
This theorem is referenced by: reu6 2781 f1ocnv2d 5724 |
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