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Mirrors > Home > ILE Home > Th. List > rexbiia | Unicode version |
Description: Inference adding restricted existential quantifier to both sides of an equivalence. (Contributed by NM, 26-Oct-1999.) |
Ref | Expression |
---|---|
ralbiia.1 |
Ref | Expression |
---|---|
rexbiia |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ralbiia.1 | . . 3 | |
2 | 1 | pm5.32i 449 | . 2 |
3 | 2 | rexbii2 2423 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wcel 1465 wrex 2394 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1408 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-4 1472 ax-ial 1499 |
This theorem depends on definitions: df-bi 116 df-rex 2399 |
This theorem is referenced by: 2rexbiia 2428 ceqsrexbv 2790 reu8 2853 reldm 6052 djur 6922 prarloclem3 7273 suplocexprlemell 7489 recexgt0 8310 fsum3 11124 even2n 11498 lmres 12344 |
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