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| Mirrors > Home > ILE Home > Th. List > ftpg | Unicode version | ||
| Description: A function with a domain of three elements. (Contributed by Alexander van der Vekens, 4-Dec-2017.) |
| Ref | Expression |
|---|---|
| ftpg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3simpa 1025 |
. . . 4
| |
| 2 | 3simpa 1025 |
. . . 4
| |
| 3 | simp1 1028 |
. . . 4
| |
| 4 | fprg 5889 |
. . . 4
| |
| 5 | 1, 2, 3, 4 | syl3an 1320 |
. . 3
|
| 6 | eqidd 2239 |
. . . 4
| |
| 7 | simp3 1030 |
. . . . . . 7
| |
| 8 | simp3 1030 |
. . . . . . 7
| |
| 9 | 7, 8 | anim12i 338 |
. . . . . 6
|
| 10 | 9 | 3adant3 1048 |
. . . . 5
|
| 11 | fsng 5872 |
. . . . 5
| |
| 12 | 10, 11 | syl 14 |
. . . 4
|
| 13 | 6, 12 | mpbird 167 |
. . 3
|
| 14 | df-ne 2421 |
. . . . . . 7
| |
| 15 | df-ne 2421 |
. . . . . . 7
| |
| 16 | elpri 3728 |
. . . . . . . . . 10
| |
| 17 | eqcom 2240 |
. . . . . . . . . . 11
| |
| 18 | eqcom 2240 |
. . . . . . . . . . 11
| |
| 19 | 17, 18 | orbi12i 776 |
. . . . . . . . . 10
|
| 20 | 16, 19 | sylib 122 |
. . . . . . . . 9
|
| 21 | oranim 793 |
. . . . . . . . 9
| |
| 22 | 20, 21 | syl 14 |
. . . . . . . 8
|
| 23 | 22 | con2i 636 |
. . . . . . 7
|
| 24 | 14, 15, 23 | syl2anb 291 |
. . . . . 6
|
| 25 | 24 | 3adant1 1046 |
. . . . 5
|
| 26 | 25 | 3ad2ant3 1051 |
. . . 4
|
| 27 | disjsn 3767 |
. . . 4
| |
| 28 | 26, 27 | sylibr 134 |
. . 3
|
| 29 | fun 5556 |
. . 3
| |
| 30 | 5, 13, 28, 29 | syl21anc 1277 |
. 2
|
| 31 | df-tp 3713 |
. . . 4
| |
| 32 | 31 | feq1i 5521 |
. . 3
|
| 33 | df-tp 3713 |
. . . 4
| |
| 34 | df-tp 3713 |
. . . 4
| |
| 35 | 33, 34 | feq23i 5523 |
. . 3
|
| 36 | 32, 35 | bitri 184 |
. 2
|
| 37 | 30, 36 | sylibr 134 |
1
|
| 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-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 4244 ax-pow 4306 ax-pr 4341 |
| This theorem 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-reu 2535 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3687 df-sn 3711 df-pr 3712 df-tp 3713 df-op 3714 df-br 4126 df-opab 4188 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-fun 5374 df-fn 5375 df-f 5376 df-f1 5377 df-fo 5378 df-f1o 5379 |
| This theorem is referenced by: ftp 5891 |
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