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Mirrors > Home > NFE Home > Th. List > pm2.61ii | Unicode version |
Description: Inference eliminating two antecedents. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Josh Purinton, 29-Dec-2000.) |
Ref | Expression |
---|---|
pm2.61ii.1 |
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pm2.61ii.2 |
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pm2.61ii.3 |
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Ref | Expression |
---|---|
pm2.61ii |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm2.61ii.2 |
. 2
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2 | pm2.61ii.1 |
. . 3
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3 | pm2.61ii.3 |
. . 3
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4 | 2, 3 | pm2.61d2 152 |
. 2
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5 | 1, 4 | pm2.61i 156 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem is referenced by: pm2.61iii 159 hbae 1953 sbequi 2059 sbcom 2089 sbcom2 2114 hbae-o 2153 hbequid 2160 ax17eq 2183 ax17el 2189 |
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