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| Mirrors > Home > ILE Home > Th. List > tfrcllemsucfn | Unicode version | ||
| Description: We can extend an acceptable function by one element to produce a function. Lemma for tfrcl 6635. (Contributed by Jim Kingdon, 24-Mar-2022.) |
| Ref | Expression |
|---|---|
| tfrcl.f |
|
| tfrcl.g |
|
| tfrcl.x |
|
| tfrcl.ex |
|
| tfrcllemsucfn.1 |
|
| tfrcllemsucfn.3 |
|
| tfrcllemsucfn.4 |
|
| tfrcllemsucfn.5 |
|
| Ref | Expression |
|---|---|
| tfrcllemsucfn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tfrcllemsucfn.4 |
. . 3
| |
| 2 | tfrcllemsucfn.3 |
. . . 4
| |
| 3 | 2 | elexd 2835 |
. . 3
|
| 4 | tfrcl.x |
. . . . 5
| |
| 5 | ordelon 4528 |
. . . . 5
| |
| 6 | 4, 2, 5 | syl2anc 415 |
. . . 4
|
| 7 | eloni 4520 |
. . . 4
| |
| 8 | ordirr 4689 |
. . . 4
| |
| 9 | 6, 7, 8 | 3syl 17 |
. . 3
|
| 10 | feq2 5517 |
. . . . . . 7
| |
| 11 | 10 | imbi1d 231 |
. . . . . 6
|
| 12 | 11 | albidv 1877 |
. . . . 5
|
| 13 | tfrcl.ex |
. . . . . . . 8
| |
| 14 | 13 | 3expia 1236 |
. . . . . . 7
|
| 15 | 14 | alrimiv 1927 |
. . . . . 6
|
| 16 | 15 | ralrimiva 2623 |
. . . . 5
|
| 17 | 12, 16, 2 | rspcdva 2934 |
. . . 4
|
| 18 | feq1 5516 |
. . . . . 6
| |
| 19 | fveq2 5695 |
. . . . . . 7
| |
| 20 | 19 | eleq1d 2307 |
. . . . . 6
|
| 21 | 18, 20 | imbi12d 234 |
. . . . 5
|
| 22 | 21 | spv 1913 |
. . . 4
|
| 23 | 17, 1, 22 | sylc 62 |
. . 3
|
| 24 | fsnunf 5915 |
. . 3
| |
| 25 | 1, 3, 9, 23, 24 | syl121anc 1283 |
. 2
|
| 26 | df-suc 4516 |
. . 3
| |
| 27 | 26 | feq2i 5527 |
. 2
|
| 28 | 25, 27 | sylibr 134 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-setind 4684 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-tr 4230 df-id 4438 df-iord 4511 df-on 4513 df-suc 4516 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-iota 5337 df-fun 5379 df-fn 5380 df-f 5381 df-f1 5382 df-fo 5383 df-f1o 5384 df-fv 5385 |
| This theorem is used by: tfrcllemsucaccv 6625 tfrcllembfn 6628 |
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