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| Mirrors > Home > ILE Home > Th. List > sseq1d | Unicode version | ||
| Description: An equality deduction for the subclass relationship. (Contributed by NM, 14-Aug-1994.) |
| Ref | Expression |
|---|---|
| sseq1d.1 |
|
| Ref | Expression |
|---|---|
| sseq1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseq1d.1 |
. 2
| |
| 2 | sseq1 3271 |
. 2
| |
| 3 | 1, 2 | syl 14 |
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-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 |
| This theorem is referenced by: sseq12d 3279 eqsstrd 3284 snssgOLD 3846 ssiun2s 4051 treq 4230 onsucsssucexmid 4669 funimass1 5453 feq1 5511 sbcfg 5527 fvmptssdm 5784 fvimacnvi 5814 nnsucsssuc 6755 ereq1 6804 elpm2r 6930 fipwssg 7303 nnnninf 7456 ctssexmid 7480 rspssp 14803 iscnp 15223 iscnp4 15242 cnntr 15249 cnconst2 15257 cnptopresti 15262 cnptoprest 15263 txbas 15282 txcnp 15295 txdis 15301 txdis1cn 15302 blssps 15451 blss 15452 ssblex 15455 blin2 15456 metss2 15522 metrest 15530 metcnp3 15535 cnopnap 15635 limccl 15683 ellimc3apf 15684 ausgrumgrien 16325 ausgrusgrien 16326 eupth2lem3lem4fi 16628 |
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