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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 3219 | . 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 2200 ⊆ wss 3198 |
| 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 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-11 1552 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-in 3204 df-ss 3211 |
| This theorem is referenced by: sselda 3225 sseldd 3226 ssneld 3227 elelpwi 3662 ssbrd 4129 uniopel 4347 onintonm 4613 sucprcreg 4645 ordsuc 4659 0elnn 4715 dmrnssfld 4993 nfunv 5357 opelf 5504 fvimacnv 5758 ffvelcdm 5776 resflem 5807 f1imass 5910 dftpos3 6423 nnmordi 6679 mapsn 6854 ixpf 6884 pw2f1odclem 7015 diffifi 7076 ordiso2 7225 difinfinf 7291 exmidapne 7469 prarloclemarch2 7629 ltexprlemrl 7820 cauappcvgprlemladdrl 7867 caucvgprlemladdrl 7888 caucvgprlem1 7889 axpre-suploclemres 8111 uzind 9581 supinfneg 9819 infsupneg 9820 ixxssxr 10125 elfz0add 10345 fzoss1 10398 elfzoextl 10426 frecuzrdgrclt 10667 ccatval2 11165 swrdswrd 11276 pfxccatin12lem2a 11298 swrdccatin2 11300 pfxccatpfx2 11308 fsum3cvg 11929 isumrpcl 12045 fproddccvg 12123 reumodprminv 12816 issubmnd 13515 issubg2m 13766 eqgid 13803 issubrng2 14214 subrgdvds 14239 issubrg2 14245 lssats2 14418 rnglidlmmgm 14500 rnglidlmsgrp 14501 rnglidlrng 14502 mplbasss 14700 lmtopcnp 14964 txuni2 14970 tx1cn 14983 tx2cn 14984 txlm 14993 imasnopn 15013 xmetunirn 15072 mopnval 15156 metrest 15220 dedekindicc 15347 ivthdec 15358 limcimolemlt 15378 plyssc 15453 edgupgren 15980 clwwlkccatlem 16195 bj-charfundc 16339 bj-nnord 16489 |
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