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| Mirrors > Home > ILE Home > Th. List > unieqd | Unicode version | ||
| Description: Deduction of equality of two class unions. (Contributed by NM, 21-Apr-1995.) |
| Ref | Expression |
|---|---|
| unieqd.1 |
|
| Ref | Expression |
|---|---|
| unieqd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | unieqd.1 |
. 2
| |
| 2 | unieq 3944 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 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-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-uni 3936 |
| This theorem is used by: uniprg 3950 unisng 3952 unisn3 4593 onsucuni2 4713 opswapg 5277 elxp4 5278 elxp5 5279 iotaeq 5349 iotabi 5350 uniabio 5351 funfvdm 5769 funfvdm2 5770 fvun1 5772 fniunfv 5971 funiunfvdm 5972 1stvalg 6380 2ndvalg 6381 fo1st 6395 fo2nd 6396 f1stres 6397 f2ndres 6398 2nd1st 6418 cnvf1olem 6464 brtpos2 6527 dftpos4 6539 tpostpos 6540 recseq 6582 tfrexlem 6610 ixpsnf1o 7024 xpcomco 7130 xpassen 7134 xpdom2 7135 supeq1 7332 supeq2 7335 supeq3 7336 supeq123d 7337 en2other2 7554 dfinfre 9294 hashinfom 11238 hashennn 11240 fsumcnv 12228 fprodcnv 12416 tgval 13674 ptex 13676 gsumcom2fi 14274 lssuni 14808 lspuni0 14869 lss0v 14875 zrhval 15060 zrhvalg 15061 zrhval2 15062 zrhpropd 15069 isbasisg 15287 basis1 15290 baspartn 15293 eltg 15295 ntrfval 15343 ntrval 15353 tgrest 15412 restuni2 15420 lmfval 15436 cnfval 15437 cnpfval 15438 txtopon 15505 txswaphmeolem 15563 peano4nninf 17272 |
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