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Mirrors > Home > ILE Home > Th. List > 2exbidv | Unicode version |
Description: Formula-building rule for 2 existential quantifiers (deduction form). (Contributed by NM, 1-May-1995.) |
Ref | Expression |
---|---|
2albidv.1 |
Ref | Expression |
---|---|
2exbidv |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2albidv.1 | . . 3 | |
2 | 1 | exbidv 1797 | . 2 |
3 | 2 | exbidv 1797 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wex 1468 |
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 1423 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-4 1487 ax-17 1506 ax-ial 1514 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: 3exbidv 1841 4exbidv 1842 cbvex4v 1900 ceqsex3v 2723 ceqsex4v 2724 copsexg 4161 euotd 4171 elopab 4175 elxpi 4550 relop 4684 cbvoprab3 5840 ov6g 5901 th3qlem1 6524 ltresr 7640 fisumcom2 11200 |
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