| 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 4223. (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 4223 | . 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 2200 Vcvv 2799 ⊆ wss 3197 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-sep 4202 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-in 3203 df-ss 3210 |
| This theorem is referenced by: iotaexab 5297 fex2 5494 riotaexg 5964 opabbrex 6054 funexw 6263 f1imaen2g 6953 pw2f1odclem 7003 fiss 7155 genipv 7707 suplocexprlemlub 7922 hashfacen 11071 ovshftex 11346 strslssd 13095 ressbas2d 13117 ressval3d 13121 ressabsg 13125 restid2 13297 ptex 13313 prdsval 13322 prdsbaslemss 13323 divsfval 13377 divsfvalg 13378 igsumvalx 13438 issubmnd 13491 ress0g 13492 issubg2m 13742 releqgg 13773 eqgex 13774 eqgfval 13775 isghm 13796 ringidss 14008 dvdsrvald 14073 dvdsrex 14078 unitgrp 14096 unitabl 14097 unitlinv 14106 unitrinv 14107 dvrfvald 14113 rdivmuldivd 14124 invrpropdg 14129 rhmunitinv 14158 subrgugrp 14220 aprval 14262 aprap 14266 sralemg 14418 srascag 14422 sravscag 14423 sraipg 14424 sraex 14426 2basgeng 14772 cnrest2 14926 cnptopresti 14928 cnptoprest 14929 cnptoprest2 14930 cnmpt2res 14987 psmetres2 15023 xmetres2 15069 limccnp2lem 15366 limccnp2cntop 15367 dvfvalap 15371 dvmulxxbr 15392 dvaddxx 15393 dvmulxx 15394 dviaddf 15395 dvimulf 15396 dvcoapbr 15397 dvmptaddx 15409 dvmptmulx 15410 plycj 15451 wksfval 16068 wlkex 16071 trlsfvalg 16127 |
| Copyright terms: Public domain | W3C validator |