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Mirrors > Home > ILE Home > Th. List > exbidh | Unicode version |
Description: Formula-building rule for existential quantifier (deduction form). (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
exbidh.1 |
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exbidh.2 |
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Ref | Expression |
---|---|
exbidh |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exbidh.1 |
. . 3
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2 | exbidh.2 |
. . 3
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3 | 1, 2 | alrimih 1469 |
. 2
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4 | exbi 1604 |
. 2
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5 | 3, 4 | syl 14 |
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 106 ax-ia2 107 ax-ia3 108 ax-5 1447 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-4 1510 ax-ial 1534 |
This theorem depends on definitions: df-bi 117 |
This theorem is referenced by: exbid 1616 drex2 1732 drex1 1798 exbidv 1825 mobidh 2060 |
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