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| Mirrors > Home > ILE Home > Th. List > sseqtrri | Unicode version | ||
| Description: Substitution of equality into a subclass relationship. (Contributed by NM, 4-Apr-1995.) |
| Ref | Expression |
|---|---|
| sseqtrri.1 |
|
| sseqtrri.2 |
|
| Ref | Expression |
|---|---|
| sseqtrri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseqtrri.1 |
. 2
| |
| 2 | sseqtrri.2 |
. . 3
| |
| 3 | 2 | eqcomi 2235 |
. 2
|
| 4 | 1, 3 | sseqtri 3262 |
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 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-in 3207 df-ss 3214 |
| This theorem is referenced by: eqimss2i 3285 difdif2ss 3466 snsspr1 3826 snsspr2 3827 snsstp1 3828 snsstp2 3829 snsstp3 3830 prsstp12 3831 prsstp13 3832 prsstp23 3833 iunxdif2 4024 pwpwssunieq 4064 sssucid 4518 opabssxp 4806 dmresi 5074 cnvimass 5106 ssrnres 5186 cnvcnv 5196 cnvssrndm 5265 dmmpossx 6373 tfrcllemssrecs 6561 sucinc 6656 mapex 6866 exmidpw 7143 exmidpweq 7144 casefun 7327 djufun 7346 pw1ne1 7490 ressxr 8265 ltrelxr 8282 nnssnn0 9447 un0addcl 9477 un0mulcl 9478 nn0ssxnn0 9512 fzssnn 10348 fzossnn0 10457 isumclim3 12047 isprm3 12753 phimullem 12860 tgvalex 13409 eqgfval 13872 cnfldbas 14639 mpocnfldadd 14640 mpocnfldmul 14642 cnfldcj 14644 cnfldtset 14645 cnfldle 14646 cnfldds 14647 cnrest2 15030 qtopbasss 15315 tgqioo 15349 |
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