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| Mirrors > Home > ILE Home > Th. List > sseld | GIF version | ||
| Description: Membership deduction from subclass relationship. (Contributed by NM, 15-Nov-1995.) |
| Ref | Expression |
|---|---|
| sseld.1 | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| sseld | ⊢ (𝜑 → (𝐶 ∈ 𝐴 → 𝐶 ∈ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseld.1 | . 2 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
| 2 | ssel 3221 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∈ 𝐴 → 𝐶 ∈ 𝐵)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (𝐶 ∈ 𝐴 → 𝐶 ∈ 𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 ⊆ wss 3200 |
| 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-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-11 1554 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-in 3206 df-ss 3213 |
| This theorem is referenced by: sselda 3227 sseldd 3228 ssneld 3229 elelpwi 3664 ssbrd 4131 uniopel 4349 onintonm 4615 sucprcreg 4647 ordsuc 4661 0elnn 4717 dmrnssfld 4995 nfunv 5359 opelf 5507 fvimacnv 5762 ffvelcdm 5780 resflem 5811 f1imass 5914 dftpos3 6427 nnmordi 6683 mapsn 6858 ixpf 6888 pw2f1odclem 7019 diffifi 7082 ordiso2 7233 difinfinf 7299 exmidapne 7478 prarloclemarch2 7638 ltexprlemrl 7829 cauappcvgprlemladdrl 7876 caucvgprlemladdrl 7897 caucvgprlem1 7898 axpre-suploclemres 8120 uzind 9590 supinfneg 9828 infsupneg 9829 ixxssxr 10134 elfz0add 10354 fzoss1 10407 elfzoextl 10435 frecuzrdgrclt 10676 ccatval2 11174 swrdswrd 11285 pfxccatin12lem2a 11307 swrdccatin2 11309 pfxccatpfx2 11317 fsum3cvg 11938 isumrpcl 12054 fproddccvg 12132 reumodprminv 12825 issubmnd 13524 issubg2m 13775 eqgid 13812 issubrng2 14223 subrgdvds 14248 issubrg2 14254 lssats2 14427 rnglidlmmgm 14509 rnglidlmsgrp 14510 rnglidlrng 14511 mplbasss 14709 lmtopcnp 14973 txuni2 14979 tx1cn 14992 tx2cn 14993 txlm 15002 imasnopn 15022 xmetunirn 15081 mopnval 15165 metrest 15229 dedekindicc 15356 ivthdec 15367 limcimolemlt 15387 plyssc 15462 edgupgren 15991 subgreldmiedg 16119 clwwlkccatlem 16250 bj-charfundc 16403 bj-nnord 16553 |
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