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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 | |
nff.2 | |
nff.3 |
Ref | Expression |
---|---|
nff |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-f 5097 | . 2 | |
2 | nff.1 | . . . 4 | |
3 | nff.2 | . . . 4 | |
4 | 2, 3 | nffn 5189 | . . 3 |
5 | 2 | nfrn 4754 | . . . 4 |
6 | nff.3 | . . . 4 | |
7 | 5, 6 | nfss 3060 | . . 3 |
8 | 4, 7 | nfan 1529 | . 2 |
9 | 1, 8 | nfxfr 1435 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wnf 1421 wnfc 2245 wss 3041 crn 4510 wfn 5088 wf 5089 |
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 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 |
This theorem depends on definitions: df-bi 116 df-3an 949 df-tru 1319 df-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ral 2398 df-v 2662 df-un 3045 df-in 3047 df-ss 3054 df-sn 3503 df-pr 3504 df-op 3506 df-br 3900 df-opab 3960 df-rel 4516 df-cnv 4517 df-co 4518 df-dm 4519 df-rn 4520 df-fun 5095 df-fn 5096 df-f 5097 |
This theorem is referenced by: nff1 5296 |
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