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Mirrors > Home > ILE Home > Th. List > pm2.01d | Unicode version |
Description: Deduction based on reductio ad absurdum. (Contributed by NM, 18-Aug-1993.) (Revised by Mario Carneiro, 31-Jan-2015.) |
Ref | Expression |
---|---|
pm2.01d.1 |
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Ref | Expression |
---|---|
pm2.01d |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm2.01d.1 |
. 2
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2 | pm2.01 616 |
. 2
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3 | 1, 2 | syl 14 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-in1 614 |
This theorem is referenced by: pm2.01da 636 pm2.65d 660 pm5.19 706 mtord 783 swopo 4302 rennim 10982 absle 11069 bj-nnclavius 14111 |
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