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| Mirrors > Home > ILE Home > Th. List > eqimss | Unicode version | ||
| Description: Equality implies the subclass relation. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Andrew Salmon, 21-Jun-2011.) |
| Ref | Expression |
|---|---|
| eqimss |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqss 3263 |
. 2
| |
| 2 | 1 | simplbi 274 |
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: eqimss2 3303 uneqin 3482 ssprsseq 3872 sssnr 3873 sssnm 3874 ssprr 3876 sstpr 3877 snsspw 3884 pwpwssunieq 4096 elpwuni 4097 disjeq2 4105 disjeq1 4108 pwne 4292 pwssunim 4424 poeq2 4440 seeq1 4479 seeq2 4480 trsucss 4563 onsucelsucr 4650 xp11m 5221 funeq 5392 fnresdm 5487 fssxp 5550 ffdm 5553 fcoi1 5567 fof 5610 dff1o2 5639 fvmptss2 5774 fvmptssdm 5784 fprg 5889 dff1o6 5972 tposeq 6508 el2oss1o 6706 nntri1 6759 nntri2or2 6761 nnsseleq 6764 infnninf 7454 infnninfOLD 7455 nninfwlpoimlemg 7505 exmidontri2or 7592 frec2uzf1od 10821 hashinfuni 11194 setsresg 13368 setsslid 13381 strle1g 13437 cncnpi 15252 hmeores 15339 limcimolemlt 15688 recnprss 15711 plycoeid3 15781 0nninf 16952 nninfall 16957 |
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