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Mirrors > Home > ILE Home > Th. List > axpow2 | Unicode version |
Description: A variant of the Axiom of Power Sets ax-pow 4058 using subset notation. Problem in {BellMachover] p. 466. (Contributed by NM, 4-Jun-2006.) |
Ref | Expression |
---|---|
axpow2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-pow 4058 |
. 2
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2 | dfss2 3052 |
. . . . 5
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3 | 2 | imbi1i 237 |
. . . 4
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4 | 3 | albii 1429 |
. . 3
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5 | 4 | exbii 1567 |
. 2
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6 | 1, 5 | mpbir 145 |
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 1406 ax-7 1407 ax-gen 1408 ax-ie1 1452 ax-ie2 1453 ax-8 1465 ax-11 1467 ax-4 1470 ax-17 1489 ax-i9 1493 ax-ial 1497 ax-i5r 1498 ax-ext 2097 ax-pow 4058 |
This theorem depends on definitions: df-bi 116 df-nf 1420 df-sb 1719 df-clab 2102 df-cleq 2108 df-clel 2111 df-in 3043 df-ss 3050 |
This theorem is referenced by: axpow3 4061 vpwex 4063 |
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