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| Mirrors > Home > MPE Home > Th. List > ssrind | Structured version Visualization version GIF version | ||
| Description: Add right intersection to subclass relation. (Contributed by Glauco Siliprandi, 2-Jan-2022.) |
| Ref | Expression |
|---|---|
| ssrind.1 | ⊢ (𝜑 → 𝐴 ⊆ 𝐵) |
| Ref | Expression |
|---|---|
| ssrind | ⊢ (𝜑 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssrind.1 | . 2 ⊢ (𝜑 → 𝐴 ⊆ 𝐵) | |
| 2 | ssrin 4141 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ⊆ wss 3900 ∩ cin 4092 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-v 3456 df-ss 3901 df-in 4094 |
| This theorem is used by: fictb 10352 isacs1i 17863 rescabs 18040 lsmdisj 19928 dmdprdsplit2lem 20294 rhmsscrnghm 20950 rngcresringcat 20954 acsfn1p 21089 obselocv 22067 restbas 23509 neitr 23531 restcls 23532 restntr 23533 nrmsep 23708 cldllycmp 23847 fclsneii 24369 tsmsres 24496 trcfilu 24645 metdseq0 25207 iundisj2 25903 uniioombllem3 25939 ppisval 27464 ppisval2 27465 chtwordi 27516 ppiwordi 27522 chpub 27580 chebbnd1lem1 27829 mdbr2 32931 mdslj1i 32954 mdsl2i 32957 mdslmd1lem1 32960 mdslmd3i 32967 mdexchi 32970 sumdmdlem 33053 iundisj2f 33259 iundisj2fi 33462 cycpmco2f1 33761 tocyccntz 33781 esumrnmpt2 34783 bnj1177 35719 sstotbnd2 38911 lcvexchlem5 40298 pnonsingN 41193 dochnoncon 42651 eldioph2lem2 43976 limsupres 46930 limsupresxr 46991 liminfresxr 46992 liminflelimsuplem 47000 ssdisjd 50133 |
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