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| Mirrors > Home > ILE Home > Th. List > fsnunres | Unicode version | ||
| Description: Recover the original function from a point-added function. (Contributed by Stefan O'Rear, 28-Feb-2015.) |
| Ref | Expression |
|---|---|
| fsnunres |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fnresdm 5487 |
. . . 4
| |
| 2 | 1 | adantr 276 |
. . 3
|
| 3 | ressnop0 5887 |
. . . 4
| |
| 4 | 3 | adantl 277 |
. . 3
|
| 5 | 2, 4 | uneq12d 3384 |
. 2
|
| 6 | resundir 5072 |
. 2
| |
| 7 | un0 3556 |
. . 3
| |
| 8 | 7 | eqcomi 2242 |
. 2
|
| 9 | 5, 6, 8 | 3eqtr4g 2296 |
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-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 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-br 4126 df-opab 4188 df-xp 4775 df-rel 4776 df-dm 4779 df-res 4781 df-fun 5374 df-fn 5375 |
| This theorem is referenced by: tfrlemisucaccv 6586 tfr1onlemsucaccv 6602 tfrcllemsucaccv 6615 |
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