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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 3218 | . 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 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-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 3203 df-ss 3210 |
| This theorem is referenced by: sselda 3224 sseldd 3225 ssneld 3226 elelpwi 3661 ssbrd 4126 uniopel 4343 onintonm 4609 sucprcreg 4641 ordsuc 4655 0elnn 4711 dmrnssfld 4987 nfunv 5351 opelf 5498 fvimacnv 5752 ffvelcdm 5770 resflem 5801 f1imass 5904 dftpos3 6414 nnmordi 6670 mapsn 6845 ixpf 6875 pw2f1odclem 7003 diffifi 7064 ordiso2 7213 difinfinf 7279 exmidapne 7457 prarloclemarch2 7617 ltexprlemrl 7808 cauappcvgprlemladdrl 7855 caucvgprlemladdrl 7876 caucvgprlem1 7877 axpre-suploclemres 8099 uzind 9569 supinfneg 9802 infsupneg 9803 ixxssxr 10108 elfz0add 10328 fzoss1 10381 elfzoextl 10409 frecuzrdgrclt 10649 ccatval2 11146 swrdswrd 11252 pfxccatin12lem2a 11274 swrdccatin2 11276 pfxccatpfx2 11284 fsum3cvg 11904 isumrpcl 12020 fproddccvg 12098 reumodprminv 12791 issubmnd 13490 issubg2m 13741 eqgid 13778 issubrng2 14189 subrgdvds 14214 issubrg2 14220 lssats2 14393 rnglidlmmgm 14475 rnglidlmsgrp 14476 rnglidlrng 14477 mplbasss 14675 lmtopcnp 14939 txuni2 14945 tx1cn 14958 tx2cn 14959 txlm 14968 imasnopn 14988 xmetunirn 15047 mopnval 15131 metrest 15195 dedekindicc 15322 ivthdec 15333 limcimolemlt 15353 plyssc 15428 edgupgren 15954 clwwlkccatlem 16137 bj-charfundc 16226 bj-nnord 16376 |
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