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Mirrors > Home > ILE Home > Th. List > sstrd | Unicode version |
Description: Subclass transitivity deduction. (Contributed by NM, 2-Jun-2004.) |
Ref | Expression |
---|---|
sstrd.1 | |
sstrd.2 |
Ref | Expression |
---|---|
sstrd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sstrd.1 | . 2 | |
2 | sstrd.2 | . 2 | |
3 | sstr 3105 | . 2 | |
4 | 1, 2, 3 | syl2anc 408 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wss 3071 |
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-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-in 3077 df-ss 3084 |
This theorem is referenced by: sstrid 3108 sstrdi 3109 ssdif2d 3215 tfisi 4501 funss 5142 fssxp 5290 fvmptssdm 5505 suppssfv 5978 suppssov1 5979 tposss 6143 tfrlem1 6205 tfrlemibfn 6225 tfr1onlembfn 6241 tfr1onlemubacc 6243 tfr1onlemres 6246 tfrcllembfn 6254 tfrcllemubacc 6256 tfrcllemres 6259 ecinxp 6504 undifdc 6812 sbthlem1 6845 iseqf1olemnab 10261 isumss 11160 ennnfoneleminc 11924 strsetsid 11992 strleund 12047 ntrss 12288 neiint 12314 neiss 12319 restopnb 12350 iscnp4 12387 blssps 12596 blss 12597 xmettx 12679 tgqioo 12716 rescncf 12737 suplociccreex 12771 suplociccex 12772 dvbss 12823 dvbsssg 12824 dvfgg 12826 dvcnp2cntop 12832 dvcn 12833 dvaddxxbr 12834 dvmulxxbr 12835 dvcoapbr 12840 |
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