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Mirrors > Home > ILE Home > Th. List > r19.12 | Unicode version |
Description: Theorem 19.12 of [Margaris] p. 89 with restricted quantifiers. (Contributed by NM, 15-Oct-2003.) (Proof shortened by Andrew Salmon, 30-May-2011.) |
Ref | Expression |
---|---|
r19.12 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfcv 2329 |
. . . 4
![]() ![]() ![]() ![]() | |
2 | nfra1 2518 |
. . . 4
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3 | 1, 2 | nfrexxy 2526 |
. . 3
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4 | ax-1 6 |
. . 3
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5 | 3, 4 | ralrimi 2558 |
. 2
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6 | rsp 2534 |
. . . . 5
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7 | 6 | com12 30 |
. . . 4
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8 | 7 | reximdv 2588 |
. . 3
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9 | 8 | ralimia 2548 |
. 2
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10 | 5, 9 | 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 1457 ax-7 1458 ax-gen 1459 ax-ie1 1503 ax-ie2 1504 ax-4 1520 ax-17 1536 ax-ial 1544 ax-i5r 1545 ax-ext 2169 |
This theorem depends on definitions: df-bi 117 df-tru 1366 df-nf 1471 df-cleq 2180 df-clel 2183 df-nfc 2318 df-ral 2470 df-rex 2471 |
This theorem is referenced by: iuniin 3908 |
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