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| Mirrors > Home > ILE Home > Th. List > eqimss2 | Unicode version | ||
| Description: Equality implies the subclass relation. (Contributed by NM, 23-Nov-2003.) |
| Ref | Expression |
|---|---|
| eqimss2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqimss 3302 |
. 2
| |
| 2 | 1 | eqcoms 2241 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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 proof 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 used by: ifpprsnssdc 3820 disjeq2 4110 disjeq1 4113 poeq2 4447 seeq1 4486 seeq2 4487 dmcoeq 5057 xp11m 5229 funeq 5400 fconst3m 5937 tposeq 6523 mapssfsetg 6951 undifdcss 7236 nninfctlemfo 12841 ennnfonelemk 13348 ennnfonelemss 13358 qnnen 13379 imasaddfnlemg 13693 topgele 15272 topontopn 15280 txdis 15520 edgstruct 16527 |
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