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Mirrors > Home > ILE Home > Th. List > nfxp | Unicode version |
Description: Bound-variable hypothesis builder for cross product. (Contributed by NM, 15-Sep-2003.) (Revised by Mario Carneiro, 15-Oct-2016.) |
Ref | Expression |
---|---|
nfxp.1 |
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nfxp.2 |
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Ref | Expression |
---|---|
nfxp |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-xp 4553 |
. 2
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2 | nfxp.1 |
. . . . 5
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3 | 2 | nfcri 2276 |
. . . 4
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4 | nfxp.2 |
. . . . 5
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5 | 4 | nfcri 2276 |
. . . 4
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6 | 3, 5 | nfan 1545 |
. . 3
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7 | 6 | nfopab 4004 |
. 2
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8 | 1, 7 | nfcxfr 2279 |
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 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-opab 3998 df-xp 4553 |
This theorem is referenced by: opeliunxp 4602 nfres 4829 mpomptsx 6103 dmmpossx 6105 fmpox 6106 disjxp1 6141 nfdju 6935 fsum2dlemstep 11235 fisumcom2 11239 |
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