| 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 4233. (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 4233 | . 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 2202 Vcvv 2803 ⊆ wss 3201 |
| 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 2213 ax-sep 4212 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-v 2805 df-in 3207 df-ss 3214 |
| This theorem is referenced by: iotaexab 5312 fex2 5511 riotaexg 5985 opabbrex 6075 funexw 6283 opabex2 6366 f1imaen2g 7010 pw2f1odclem 7063 fiss 7236 genipv 7789 suplocexprlemlub 8004 hashfacen 11163 ovshftex 11459 strslssd 13209 ressbas2d 13231 ressval3d 13235 ressabsg 13239 restid2 13411 ptex 13427 prdsval 13436 prdsbaslemss 13437 divsfval 13491 divsfvalg 13492 igsumvalx 13552 issubmnd 13605 ress0g 13606 issubg2m 13856 releqgg 13887 eqgex 13888 eqgfval 13889 isghm 13910 ringidss 14123 dvdsrvald 14188 dvdsrex 14193 unitgrp 14211 unitabl 14212 unitlinv 14221 unitrinv 14222 dvrfvald 14228 rdivmuldivd 14239 invrpropdg 14244 rhmunitinv 14273 subrgugrp 14335 aprval 14378 aprap 14382 sralemg 14534 srascag 14538 sravscag 14539 sraipg 14540 sraex 14542 2basgeng 14893 cnrest2 15047 cnptopresti 15049 cnptoprest 15050 cnptoprest2 15051 cnmpt2res 15108 psmetres2 15144 xmetres2 15190 limccnp2lem 15487 limccnp2cntop 15488 dvfvalap 15492 dvmulxxbr 15513 dvaddxx 15514 dvmulxx 15515 dviaddf 15516 dvimulf 15517 dvcoapbr 15518 dvmptaddx 15530 dvmptmulx 15531 plycj 15572 wksfval 16263 wlkex 16266 trlsfvalg 16324 trlsex 16328 eupthsg 16386 |
| Copyright terms: Public domain | W3C validator |