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Mirrors > Home > ILE Home > Th. List > pm1.4 | Unicode version |
Description: Axiom *1.4 of [WhiteheadRussell] p. 96. (Contributed by NM, 3-Jan-2005.) (Revised by NM, 15-Nov-2012.) |
Ref | Expression |
---|---|
pm1.4 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | olc 711 |
. 2
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2 | orc 712 |
. 2
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3 | 1, 2 | jaoi 716 |
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-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 709 |
This theorem depends on definitions: df-bi 117 |
This theorem is referenced by: orcom 728 orcoms 730 pm2.3 775 pm2.36 804 pm2.37 805 pm2.8 810 dveeq2or 1816 prneimg 3772 |
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