| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ssexd | GIF version | ||
| Description: A subclass of a set is a set. Deduction form of ssexg 4254. (Contributed by David Moews, 1-May-2017.) |
| Ref | Expression |
|---|---|
| ssexd.1 | ⊢ (𝜑 → 𝐵 ∈ 𝐶) |
| ssexd.2 | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| ssexd | ⊢ (𝜑 → 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssexd.2 | . 2 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
| 2 | ssexd.1 | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝐶) | |
| 3 | ssexg 4254 | . 2 ⊢ ((𝐴 ⊆ 𝐵 ∧ 𝐵 ∈ 𝐶) → 𝐴 ∈ V) | |
| 4 | 1, 2, 3 | syl2anc 411 | 1 ⊢ (𝜑 → 𝐴 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2205 Vcvv 2815 ⊆ wss 3214 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 ax-sep 4233 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-in 3220 df-ss 3227 |
| This theorem is referenced by: iotaexab 5336 fex2 5536 riotaexg 6015 opabbrex 6105 funexw 6314 opabex2 6401 f1imaen2g 7046 pw2f1odclem 7100 fiss 7277 genipv 7840 suplocexprlemlub 8055 hashfibclem 11234 hashfacen 11236 ovshftex 11532 strslssd 13346 ressbas2d 13368 ressval3d 13372 ressabsg 13376 restid2 13548 ptex 13564 divsfval 13595 divsfvalg 13596 igsumvalx 13655 issubmnd 13706 ress0g 13707 issubg2m 13945 releqgg 13976 eqgex 13977 eqgfval 13978 isghm 13999 prdsval 14118 prdsbaslemss 14119 ringidss 14275 dvdsrvald 14341 dvdsrex 14346 unitgrp 14364 unitabl 14365 unitlinv 14374 unitrinv 14375 dvrfvald 14381 rdivmuldivd 14392 invrpropdg 14397 rhmunitinv 14426 subrgugrp 14489 aprval 14532 aprap 14539 aprprop 14542 sralemg 14715 srascag 14719 sravscag 14720 sraipg 14721 sraex 14723 2basgeng 15076 cnrest2 15230 cnptopresti 15232 cnptoprest 15233 cnptoprest2 15234 cnmpt2res 15291 psmetres2 15327 xmetres2 15373 limccnp2lem 15670 limccnp2cntop 15671 dvfvalap 15675 dvmulxxbr 15696 dvaddxx 15697 dvmulxx 15698 dviaddf 15699 dvimulf 15700 dvcoapbr 15701 dvmptaddx 15713 dvmptmulx 15714 plycj 15755 wksfval 16446 wlkex 16449 trlsfvalg 16507 trlsex 16511 eupthsg 16569 |
| Copyright terms: Public domain | W3C validator |