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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 1021 |
. . . 4
| |
| 2 | 3simpa 1021 |
. . . 4
| |
| 3 | simp1 1024 |
. . . 4
| |
| 4 | fprg 5845 |
. . . 4
| |
| 5 | 1, 2, 3, 4 | syl3an 1316 |
. . 3
|
| 6 | eqidd 2232 |
. . . 4
| |
| 7 | simp3 1026 |
. . . . . . 7
| |
| 8 | simp3 1026 |
. . . . . . 7
| |
| 9 | 7, 8 | anim12i 338 |
. . . . . 6
|
| 10 | 9 | 3adant3 1044 |
. . . . 5
|
| 11 | fsng 5828 |
. . . . 5
| |
| 12 | 10, 11 | syl 14 |
. . . 4
|
| 13 | 6, 12 | mpbird 167 |
. . 3
|
| 14 | df-ne 2404 |
. . . . . . 7
| |
| 15 | df-ne 2404 |
. . . . . . 7
| |
| 16 | elpri 3696 |
. . . . . . . . . 10
| |
| 17 | eqcom 2233 |
. . . . . . . . . . 11
| |
| 18 | eqcom 2233 |
. . . . . . . . . . 11
| |
| 19 | 17, 18 | orbi12i 772 |
. . . . . . . . . 10
|
| 20 | 16, 19 | sylib 122 |
. . . . . . . . 9
|
| 21 | oranim 789 |
. . . . . . . . 9
| |
| 22 | 20, 21 | syl 14 |
. . . . . . . 8
|
| 23 | 22 | con2i 632 |
. . . . . . 7
|
| 24 | 14, 15, 23 | syl2anb 291 |
. . . . . 6
|
| 25 | 24 | 3adant1 1042 |
. . . . 5
|
| 26 | 25 | 3ad2ant3 1047 |
. . . 4
|
| 27 | disjsn 3735 |
. . . 4
| |
| 28 | 26, 27 | sylibr 134 |
. . 3
|
| 29 | fun 5516 |
. . 3
| |
| 30 | 5, 13, 28, 29 | syl21anc 1273 |
. 2
|
| 31 | df-tp 3681 |
. . . 4
| |
| 32 | 31 | feq1i 5482 |
. . 3
|
| 33 | df-tp 3681 |
. . . 4
| |
| 34 | df-tp 3681 |
. . . 4
| |
| 35 | 33, 34 | feq23i 5484 |
. . 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-ral 2516 df-rex 2517 df-reu 2518 df-v 2805 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-pw 3658 df-sn 3679 df-pr 3680 df-tp 3681 df-op 3682 df-br 4094 df-opab 4156 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 |
| This theorem is referenced by: ftp 5847 |
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