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Mirrors > Home > ILE Home > Th. List > tfrlemisucfn | Unicode version |
Description: We can extend an acceptable function by one element to produce a function. Lemma for tfrlemi1 6229. (Contributed by Jim Kingdon, 2-Jul-2019.) |
Ref | Expression |
---|---|
tfrlemisucfn.1 | |
tfrlemisucfn.2 | |
tfrlemisucfn.3 | |
tfrlemisucfn.4 | |
tfrlemisucfn.5 |
Ref | Expression |
---|---|
tfrlemisucfn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2689 | . . 3 | |
2 | 1 | a1i 9 | . 2 |
3 | tfrlemisucfn.2 | . . . 4 | |
4 | 3 | tfrlem3-2d 6209 | . . 3 |
5 | 4 | simprd 113 | . 2 |
6 | tfrlemisucfn.4 | . 2 | |
7 | eqid 2139 | . 2 | |
8 | df-suc 4293 | . 2 | |
9 | elirrv 4463 | . . 3 | |
10 | 9 | a1i 9 | . 2 |
11 | 2, 5, 6, 7, 8, 10 | fnunsn 5230 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wal 1329 wceq 1331 wcel 1480 cab 2125 wral 2416 wrex 2417 cvv 2686 cun 3069 csn 3527 cop 3530 con0 4285 csuc 4287 cres 4541 wfun 5117 wfn 5118 cfv 5123 |
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-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-setind 4452 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-ral 2421 df-rex 2422 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-opab 3990 df-id 4215 df-suc 4293 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-iota 5088 df-fun 5125 df-fn 5126 df-fv 5131 |
This theorem is referenced by: tfrlemisucaccv 6222 tfrlemibfn 6225 |
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