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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 5079 |
. . . . . . . . 9
| |
| 2 | incom 3421 |
. . . . . . . . 9
| |
| 3 | 1, 2 | eqtri 2259 |
. . . . . . . 8
|
| 4 | disjsn 3767 |
. . . . . . . . 9
| |
| 5 | 4 | biimpri 133 |
. . . . . . . 8
|
| 6 | 3, 5 | eqtrid 2283 |
. . . . . . 7
|
| 7 | 6 | 3ad2ant3 1051 |
. . . . . 6
|
| 8 | relres 5086 |
. . . . . . 7
| |
| 9 | reldm0 4994 |
. . . . . . 7
| |
| 10 | 8, 9 | ax-mp 5 |
. . . . . 6
|
| 11 | 7, 10 | sylibr 134 |
. . . . 5
|
| 12 | fnsng 5423 |
. . . . . . 7
| |
| 13 | 12 | 3adant3 1048 |
. . . . . 6
|
| 14 | fnresdm 5487 |
. . . . . 6
| |
| 15 | 13, 14 | syl 14 |
. . . . 5
|
| 16 | 11, 15 | uneq12d 3384 |
. . . 4
|
| 17 | resundir 5072 |
. . . 4
| |
| 18 | uncom 3373 |
. . . . 5
| |
| 19 | un0 3556 |
. . . . 5
| |
| 20 | 18, 19 | eqtr2i 2260 |
. . . 4
|
| 21 | 16, 17, 20 | 3eqtr4g 2296 |
. . 3
|
| 22 | 21 | fveq1d 5692 |
. 2
|
| 23 | snidg 3734 |
. . . 4
| |
| 24 | 23 | 3ad2ant1 1049 |
. . 3
|
| 25 | fvres 5714 |
. . 3
| |
| 26 | 24, 25 | syl 14 |
. 2
|
| 27 | fvsng 5902 |
. . 3
| |
| 28 | 27 | 3adant3 1048 |
. 2
|
| 29 | 22, 26, 28 | 3eqtr3d 2279 |
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-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 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-op 3714 df-uni 3931 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-res 4781 df-iota 5332 df-fun 5374 df-fn 5375 df-fv 5380 |
| This theorem is referenced by: tfrlemisucaccv 6586 tfr1onlemsucaccv 6602 tfrcllemsucaccv 6615 inftonninf 10857 hashinfom 11195 hashf1lem1 11263 zfz1isolemiso 11269 cats1un 11471 fvsetsid 13364 |
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