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Mirrors > Home > ILE Home > Th. List > pm3.2im | Unicode version |
Description: In classical logic, this is just a restatement of pm3.2 137. In intuitionistic logic, it still holds, but is weaker than pm3.2. (Contributed by Mario Carneiro, 12-May-2015.) |
Ref | Expression |
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pm3.2im |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm2.27 39 |
. 2
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2 | 1 | con2d 589 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-in1 579 ax-in2 580 |
This theorem is referenced by: expi 602 jc 615 expt 618 imnan 659 dfandc 816 |
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