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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 5872 |
. . . 4
| |
| 5 | 1, 2, 3, 4 | syl3an 1316 |
. . 3
|
| 6 | eqidd 2235 |
. . . 4
| |
| 7 | simp3 1026 |
. . . . . . 7
| |
| 8 | simp3 1026 |
. . . . . . 7
| |
| 9 | 7, 8 | anim12i 338 |
. . . . . 6
|
| 10 | 9 | 3adant3 1044 |
. . . . 5
|
| 11 | fsng 5855 |
. . . . 5
| |
| 12 | 10, 11 | syl 14 |
. . . 4
|
| 13 | 6, 12 | mpbird 167 |
. . 3
|
| 14 | df-ne 2415 |
. . . . . . 7
| |
| 15 | df-ne 2415 |
. . . . . . 7
| |
| 16 | elpri 3717 |
. . . . . . . . . 10
| |
| 17 | eqcom 2236 |
. . . . . . . . . . 11
| |
| 18 | eqcom 2236 |
. . . . . . . . . . 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 3756 |
. . . 4
| |
| 28 | 26, 27 | sylibr 134 |
. . 3
|
| 29 | fun 5541 |
. . 3
| |
| 30 | 5, 13, 28, 29 | syl21anc 1273 |
. 2
|
| 31 | df-tp 3702 |
. . . 4
| |
| 32 | 31 | feq1i 5506 |
. . 3
|
| 33 | df-tp 3702 |
. . . 4
| |
| 34 | df-tp 3702 |
. . . 4
| |
| 35 | 33, 34 | feq23i 5508 |
. . 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 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-v 2817 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-pw 3676 df-sn 3700 df-pr 3701 df-tp 3702 df-op 3703 df-br 4115 df-opab 4177 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-fun 5359 df-fn 5360 df-f 5361 df-f1 5362 df-fo 5363 df-f1o 5364 |
| This theorem is referenced by: ftp 5874 |
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