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Mirrors > Home > ILE Home > Th. List > nff | Unicode version |
Description: Bound-variable hypothesis builder for a mapping. (Contributed by NM, 29-Jan-2004.) (Revised by Mario Carneiro, 15-Oct-2016.) |
Ref | Expression |
---|---|
nff.1 |
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nff.2 |
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nff.3 |
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Ref | Expression |
---|---|
nff |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-f 5235 |
. 2
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2 | nff.1 |
. . . 4
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3 | nff.2 |
. . . 4
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4 | 2, 3 | nffn 5327 |
. . 3
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5 | 2 | nfrn 4887 |
. . . 4
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6 | nff.3 |
. . . 4
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7 | 5, 6 | nfss 3163 |
. . 3
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8 | 4, 7 | nfan 1576 |
. 2
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9 | 1, 8 | nfxfr 1485 |
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-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2171 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ral 2473 df-v 2754 df-un 3148 df-in 3150 df-ss 3157 df-sn 3613 df-pr 3614 df-op 3616 df-br 4019 df-opab 4080 df-rel 4648 df-cnv 4649 df-co 4650 df-dm 4651 df-rn 4652 df-fun 5233 df-fn 5234 df-f 5235 |
This theorem is referenced by: nff1 5434 |
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