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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 |
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Ref | Expression |
---|---|
2exbidv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2albidv.1 |
. . 3
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2 | 1 | exbidv 1798 |
. 2
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3 | 2 | exbidv 1798 |
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 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-4 1488 ax-17 1507 ax-ial 1515 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: 3exbidv 1842 4exbidv 1843 cbvex4v 1903 ceqsex3v 2731 ceqsex4v 2732 copsexg 4174 euotd 4184 elopab 4188 elxpi 4563 relop 4697 cbvoprab3 5855 ov6g 5916 th3qlem1 6539 ltresr 7671 fisumcom2 11239 |
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