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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 5232 | . . . 4 | |
2 | 1 | adantr 274 | . . 3 |
3 | ressnop0 5601 | . . . 4 | |
4 | 3 | adantl 275 | . . 3 |
5 | 2, 4 | uneq12d 3231 | . 2 |
6 | resundir 4833 | . 2 | |
7 | un0 3396 | . . 3 | |
8 | 7 | eqcomi 2143 | . 2 |
9 | 5, 6, 8 | 3eqtr4g 2197 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wceq 1331 wcel 1480 cun 3069 c0 3363 csn 3527 cop 3530 cres 4541 wfn 5118 |
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 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-xp 4545 df-rel 4546 df-dm 4549 df-res 4551 df-fun 5125 df-fn 5126 |
This theorem is referenced by: tfrlemisucaccv 6222 tfr1onlemsucaccv 6238 tfrcllemsucaccv 6251 |
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