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Mirrors > Home > MPE Home > Th. List > pm2.67-2 | Structured version Visualization version Unicode version |
Description: Slight generalization of Theorem *2.67 of [WhiteheadRussell] p. 107. (Contributed by NM, 3-Jan-2005.) |
Ref | Expression |
---|---|
pm2.67-2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | orc 387 |
. 2
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2 | 1 | imim1i 60 |
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 depends on definitions: df-bi 189 df-or 372 |
This theorem is referenced by: pm2.67 405 jaob 791 |
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