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Mirrors > Home > ILE Home > Th. List > iba | Unicode version |
Description: Introduction of antecedent as conjunct. Theorem *4.73 of [WhiteheadRussell] p. 121. (Contributed by NM, 30-Mar-1994.) (Revised by NM, 24-Mar-2013.) |
Ref | Expression |
---|---|
iba |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.21 262 | . 2 | |
2 | simpl 108 | . 2 | |
3 | 1, 2 | impbid1 141 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: biantru 300 biantrud 302 ancrb 320 rbaibd 919 dedlem0a 963 fvopab6 5590 fressnfv 5681 tpostpos 6241 nnmword 6495 unfiexmid 6892 ltmpig 7290 mul0eqap 8577 sup3exmid 8862 xrmaxiflemcom 11201 |
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