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Mirrors > Home > ILE Home > Th. List > fsnunfv | Unicode version |
Description: Recover the added point from a point-added function. (Contributed by Stefan O'Rear, 28-Feb-2015.) (Revised by NM, 18-May-2017.) |
Ref | Expression |
---|---|
fsnunfv |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmres 4912 | . . . . . . . . 9 | |
2 | incom 3319 | . . . . . . . . 9 | |
3 | 1, 2 | eqtri 2191 | . . . . . . . 8 |
4 | disjsn 3645 | . . . . . . . . 9 | |
5 | 4 | biimpri 132 | . . . . . . . 8 |
6 | 3, 5 | eqtrid 2215 | . . . . . . 7 |
7 | 6 | 3ad2ant3 1015 | . . . . . 6 |
8 | relres 4919 | . . . . . . 7 | |
9 | reldm0 4829 | . . . . . . 7 | |
10 | 8, 9 | ax-mp 5 | . . . . . 6 |
11 | 7, 10 | sylibr 133 | . . . . 5 |
12 | fnsng 5245 | . . . . . . 7 | |
13 | 12 | 3adant3 1012 | . . . . . 6 |
14 | fnresdm 5307 | . . . . . 6 | |
15 | 13, 14 | syl 14 | . . . . 5 |
16 | 11, 15 | uneq12d 3282 | . . . 4 |
17 | resundir 4905 | . . . 4 | |
18 | uncom 3271 | . . . . 5 | |
19 | un0 3448 | . . . . 5 | |
20 | 18, 19 | eqtr2i 2192 | . . . 4 |
21 | 16, 17, 20 | 3eqtr4g 2228 | . . 3 |
22 | 21 | fveq1d 5498 | . 2 |
23 | snidg 3612 | . . . 4 | |
24 | 23 | 3ad2ant1 1013 | . . 3 |
25 | fvres 5520 | . . 3 | |
26 | 24, 25 | syl 14 | . 2 |
27 | fvsng 5692 | . . 3 | |
28 | 27 | 3adant3 1012 | . 2 |
29 | 22, 26, 28 | 3eqtr3d 2211 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wb 104 w3a 973 wceq 1348 wcel 2141 cun 3119 cin 3120 c0 3414 csn 3583 cop 3586 cdm 4611 cres 4613 wrel 4616 wfn 5193 cfv 5198 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-sbc 2956 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-br 3990 df-opab 4051 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-res 4623 df-iota 5160 df-fun 5200 df-fn 5201 df-fv 5206 |
This theorem is referenced by: tfrlemisucaccv 6304 tfr1onlemsucaccv 6320 tfrcllemsucaccv 6333 inftonninf 10397 hashinfom 10712 zfz1isolemiso 10774 fvsetsid 12450 |
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