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Mirrors > Home > MPE Home > Th. List > Mathboxes > wl-pm2.18d | Structured version Visualization version Unicode version |
Description: Deduction based on reductio ad absurdum. Copy of pm2.18d 124 with a different proof. (Contributed by Wolf Lammen, 17-Dec-2018.) (New usage is discouraged.) (Proof modification is discouraged.) |
Ref | Expression |
---|---|
wl-pm2.18d.1 |
Ref | Expression |
---|---|
wl-pm2.18d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wl-pm2.18d.1 | . 2 | |
2 | ax-luk2 33242 | . 2 | |
3 | 1, 2 | wl-syl 33246 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 |
This theorem was proved from axioms: ax-mp 5 ax-luk1 33241 ax-luk2 33242 |
This theorem is referenced by: wl-con4i 33249 wl-mpi 33252 wl-con1i 33260 wl-ja 33261 |
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