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| Mirrors > Home > ILE Home > Th. List > sseqin2 | Unicode version | ||
| Description: A relationship between subclass and intersection. Similar to Exercise 9 of [TakeutiZaring] p. 18. (Contributed by NM, 17-May-1994.) |
| Ref | Expression |
|---|---|
| sseqin2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfss1 3381 |
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-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2188 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-v 2775 df-in 3176 df-ss 3183 |
| This theorem is referenced by: dfss4st 3410 resabs1 4997 mptimass 5044 rescnvcnv 5154 frecfnom 6500 fiintim 7043 nn0supp 9367 uzin 9701 iooval2 10057 fzval2 10153 suprzubdc 10401 bitsinv1 12348 dfphi2 12617 ressabsg 12983 resttopon 14718 restabs 14722 restopnb 14728 txcnmpt 14820 |
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