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Mirrors > Home > ILE Home > Th. List > 19.42vv | Unicode version |
Description: Theorem 19.42 of [Margaris] p. 90 with 2 quantifiers. (Contributed by NM, 16-Mar-1995.) |
Ref | Expression |
---|---|
19.42vv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exdistr 1836 |
. 2
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2 | 19.42v 1835 |
. 2
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3 | 1, 2 | bitri 183 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1382 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-4 1446 ax-17 1465 ax-ial 1473 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: 19.42vvv 1838 19.42vvvv 1839 exdistr2 1840 3exdistr 1841 ceqsex3v 2662 ceqsex4v 2663 elvvv 4514 dfoprab2 5710 resoprab 5755 ovi3 5795 ov6g 5796 oprabex3 5914 xpassen 6600 enq0enq 7044 enq0sym 7045 nqnq0pi 7051 |
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