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Mirrors > Home > ILE Home > Th. List > fvtp1g | Unicode version |
Description: The value of a function with a domain of (at most) three elements. (Contributed by Alexander van der Vekens, 4-Dec-2017.) |
Ref | Expression |
---|---|
fvtp1g |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-tp 3505 | . . 3 | |
2 | 1 | fveq1i 5390 | . 2 |
3 | necom 2369 | . . . . 5 | |
4 | fvunsng 5582 | . . . . 5 | |
5 | 3, 4 | sylan2b 285 | . . . 4 |
6 | 5 | ad2ant2rl 502 | . . 3 |
7 | fvpr1g 5594 | . . . . 5 | |
8 | 7 | 3expa 1166 | . . . 4 |
9 | 8 | adantrr 470 | . . 3 |
10 | 6, 9 | eqtrd 2150 | . 2 |
11 | 2, 10 | syl5eq 2162 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wceq 1316 wcel 1465 wne 2285 cun 3039 csn 3497 cpr 3498 ctp 3499 cop 3500 cfv 5093 |
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 588 ax-in2 589 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-14 1477 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-sep 4016 ax-pow 4068 ax-pr 4101 |
This theorem depends on definitions: df-bi 116 df-3an 949 df-tru 1319 df-fal 1322 df-nf 1422 df-sb 1721 df-eu 1980 df-mo 1981 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ne 2286 df-ral 2398 df-rex 2399 df-v 2662 df-sbc 2883 df-dif 3043 df-un 3045 df-in 3047 df-ss 3054 df-nul 3334 df-pw 3482 df-sn 3503 df-pr 3504 df-tp 3505 df-op 3506 df-uni 3707 df-br 3900 df-opab 3960 df-id 4185 df-xp 4515 df-rel 4516 df-cnv 4517 df-co 4518 df-dm 4519 df-res 4521 df-iota 5058 df-fun 5095 df-fv 5101 |
This theorem is referenced by: fvtp2g 5597 fvtp1 5599 |
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