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Mirrors > Home > ILE Home > Th. List > r19.26-3 | Unicode version |
Description: Theorem 19.26 of [Margaris] p. 90 with 3 restricted quantifiers. (Contributed by FL, 22-Nov-2010.) |
Ref | Expression |
---|---|
r19.26-3 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-3an 980 |
. . 3
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2 | 1 | ralbii 2483 |
. 2
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3 | r19.26 2603 |
. 2
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4 | r19.26 2603 |
. . . 4
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5 | 4 | anbi1i 458 |
. . 3
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6 | df-3an 980 |
. . 3
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7 | 5, 6 | bitr4i 187 |
. 2
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8 | 2, 3, 7 | 3bitri 206 |
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-4 1510 ax-17 1526 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-ral 2460 |
This theorem is referenced by: (None) |
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