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Mirrors > Home > ILE Home > Th. List > sseq1 | Unicode version |
Description: Equality theorem for subclasses. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Andrew Salmon, 21-Jun-2011.) |
Ref | Expression |
---|---|
sseq1 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqss 3170 |
. 2
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2 | sstr2 3162 |
. . . 4
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3 | 2 | adantl 277 |
. . 3
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4 | sstr2 3162 |
. . . 4
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5 | 4 | adantr 276 |
. . 3
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6 | 3, 5 | impbid 129 |
. 2
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7 | 1, 6 | sylbi 121 |
1
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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 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-11 1506 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 |
This theorem depends on definitions: df-bi 117 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-in 3135 df-ss 3142 |
This theorem is referenced by: sseq12 3180 sseq1i 3181 sseq1d 3184 nssne2 3214 sbss 3531 pwjust 3576 elpw 3581 elpwg 3583 sssnr 3752 ssprr 3755 sstpr 3756 unimax 3842 trss 4108 elssabg 4146 bnd2 4171 exmidexmid 4194 exmidsssn 4200 exmidsssnc 4201 exmid1stab 4206 mss 4224 exss 4225 frforeq2 4343 ordtri2orexmid 4520 ontr2exmid 4522 onsucsssucexmid 4524 reg2exmidlema 4531 sucprcreg 4546 ordtri2or2exmid 4568 ontri2orexmidim 4569 onintexmid 4570 tfis 4580 tfisi 4584 elomssom 4602 nnregexmid 4618 releq 4706 xpsspw 4736 iss 4950 relcnvtr 5145 iotass 5192 fununi 5281 funcnvuni 5282 funimaexglem 5296 ffoss 5490 ssimaex 5574 tfrlem1 6304 el2oss1o 6439 nnsucsssuc 6488 qsss 6589 phpm 6860 ssfiexmid 6871 findcard2d 6886 findcard2sd 6887 diffifi 6889 isinfinf 6892 fiintim 6923 fisseneq 6926 fidcenumlemrk 6948 fidcenumlemr 6949 sbthlem2 6952 isbth 6961 ctssdclemr 7106 onntri45 7235 tapeq1 7246 elinp 7468 sup3exmid 8908 zfz1isolem1 10811 zfz1iso 10812 fimaxre2 11226 sumeq1 11354 fsum2d 11434 fsumabs 11464 fsumiun 11476 prodeq1f 11551 fprod2d 11622 exmidunben 12417 ctiunct 12431 ssomct 12436 restsspw 12684 uniopn 13281 fiinopn 13284 fiinbas 13329 baspartn 13330 eltg2 13335 eltg3 13339 topbas 13349 clsval 13393 neival 13425 neiint 13427 neipsm 13436 opnneissb 13437 opnssneib 13438 innei 13445 restbasg 13450 cnpdis 13524 txbas 13540 eltx 13541 neitx 13550 txlm 13561 blssexps 13711 blssex 13712 neibl 13773 metrest 13788 xmettx 13792 tgioo 13828 tgqioo 13829 limcimolemlt 13915 recnprss 13938 bj-om 14460 bj-2inf 14461 bj-nntrans 14474 bj-omtrans 14479 subctctexmid 14521 pw1nct 14523 |
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