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Related theorems GIF version |
| Description: Membership deduction from subclass relationship. |
| 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 2053 | . 2 ⊢ (A ⊆ B → (C ∈ A → C ∈ B)) | |
| 3 | 1, 2 | syl 10 | 1 ⊢ (φ → (C ∈ A → C ∈ B)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ∈ wcel 955 ⊆ wss 2037 |
| This theorem is referenced by: sseldd 2058 ssbrd 2646 uniopel 2798 elrel 3243 dmrnssfld 3343 nfunv 3532 opelf 3625 fvimacnv 3790 ffvelrn 3799 1stdm 4093 oa00 4177 omordi 4181 omlimcl 4193 mapsn 4329 ixpf 4340 uniixp 4341 pssnn 4513 sucprcreg 4572 inf3lem2 4586 trcl 4617 r1ord 4627 rankwflem 4637 rankr1 4646 ssrankr1 4648 rankel 4652 r1pwcl 4659 rankuni2 4662 rankval4 4674 cplem1 4692 kmlem2 4738 zorn2lem7 4766 carduniima 4862 alephfp 4872 elprpq 5067 genpss 5079 ltexprlem7 5120 suprub 6003 uzind 6153 elfzp1 6442 fsequb 6455 fsequb2 6456 seqzfveq 6486 fsump1s 6951 fsumcllem 6952 fsum1ps 6956 fsumsplit 6958 fsumadd 6960 fsumcom 6966 fsumrev 6967 fsummulc1 6971 fsumcmp 6978 fsumcmpndx2 6980 fsumabs 6981 fsum0diaglem2 7192 fsum0diag2 7194 fsum0diag3 7195 fsum0diag4 7196 infxpidmlem5 7499 infxpidmlem7 7501 infxpidmlem8 7502 unitgt 7565 tgss2t 7579 elcls 7646 clsndisj 7648 elcls3 7652 neindisj 7672 lpval 7684 lpsscls 7686 clslp 7689 cncnpi 7712 cncnp 7717 opni2 7805 rnblopn 7814 caussi 7889 bcthlem28 7960 subgabl 8060 nmcnc 8276 sspmval 8326 sspival 8331 sspimsval 8333 sspph 8446 ubthlem6 8465 shelt 9001 shsubclt 9010 shsubcltOLD 9011 chelt 9021 ocorth 9080 shorth 9084 shselt 9193 elspansn3t 9412 elnlfn2t 9769 sumdmdlem2 10253 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-10 963 ax-12 965 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 978 df-sb 1168 df-clab 1457 df-cleq 1462 df-clel 1465 df-in 2041 df-ss 2043 |