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Mirrors > Home > ILE Home > Th. List > rexbid | Unicode version |
Description: Formula-building rule for restricted existential quantifier (deduction rule). (Contributed by NM, 27-Jun-1998.) |
Ref | Expression |
---|---|
ralbid.1 | |
ralbid.2 |
Ref | Expression |
---|---|
rexbid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ralbid.1 | . 2 | |
2 | ralbid.2 | . . 3 | |
3 | 2 | adantr 270 | . 2 |
4 | 1, 3 | rexbida 2363 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 103 wnf 1389 wcel 1433 wrex 2349 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1376 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-4 1440 ax-ial 1467 |
This theorem depends on definitions: df-bi 115 df-nf 1390 df-rex 2354 |
This theorem is referenced by: rexbidv 2369 sbcrext 2891 caucvgsrlemgt1 6971 bezout 10400 sscoll2 10783 |
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