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Mirrors > Home > ILE Home > Th. List > pm3.2im | Unicode version |
Description: In classical logic, this is just a restatement of pm3.2 138. In intuitionistic logic, it still holds, but is weaker than pm3.2. (Contributed by Mario Carneiro, 12-May-2015.) |
Ref | Expression |
---|---|
pm3.2im |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm2.27 40 | . 2 | |
2 | 1 | con2d 619 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-in1 609 ax-in2 610 |
This theorem is referenced by: expi 633 jc 645 expt 652 imnan 685 dfandc 879 |
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