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Mirrors > Home > MPE Home > Th. List > cntzrecd | Structured version Visualization version GIF version |
Description: Commute the "subgroups commute" predicate. (Contributed by Mario Carneiro, 21-Apr-2016.) |
Ref | Expression |
---|---|
cntzrecd.z | ⊢ 𝑍 = (Cntz‘𝐺) |
cntzrecd.t | ⊢ (𝜑 → 𝑇 ∈ (SubGrp‘𝐺)) |
cntzrecd.u | ⊢ (𝜑 → 𝑈 ∈ (SubGrp‘𝐺)) |
cntzrecd.s | ⊢ (𝜑 → 𝑇 ⊆ (𝑍‘𝑈)) |
Ref | Expression |
---|---|
cntzrecd | ⊢ (𝜑 → 𝑈 ⊆ (𝑍‘𝑇)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cntzrecd.s | . 2 ⊢ (𝜑 → 𝑇 ⊆ (𝑍‘𝑈)) | |
2 | cntzrecd.t | . . 3 ⊢ (𝜑 → 𝑇 ∈ (SubGrp‘𝐺)) | |
3 | cntzrecd.u | . . 3 ⊢ (𝜑 → 𝑈 ∈ (SubGrp‘𝐺)) | |
4 | eqid 2823 | . . . . 5 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
5 | 4 | subgss 18282 | . . . 4 ⊢ (𝑇 ∈ (SubGrp‘𝐺) → 𝑇 ⊆ (Base‘𝐺)) |
6 | 4 | subgss 18282 | . . . 4 ⊢ (𝑈 ∈ (SubGrp‘𝐺) → 𝑈 ⊆ (Base‘𝐺)) |
7 | cntzrecd.z | . . . . 5 ⊢ 𝑍 = (Cntz‘𝐺) | |
8 | 4, 7 | cntzrec 18466 | . . . 4 ⊢ ((𝑇 ⊆ (Base‘𝐺) ∧ 𝑈 ⊆ (Base‘𝐺)) → (𝑇 ⊆ (𝑍‘𝑈) ↔ 𝑈 ⊆ (𝑍‘𝑇))) |
9 | 5, 6, 8 | syl2an 597 | . . 3 ⊢ ((𝑇 ∈ (SubGrp‘𝐺) ∧ 𝑈 ∈ (SubGrp‘𝐺)) → (𝑇 ⊆ (𝑍‘𝑈) ↔ 𝑈 ⊆ (𝑍‘𝑇))) |
10 | 2, 3, 9 | syl2anc 586 | . 2 ⊢ (𝜑 → (𝑇 ⊆ (𝑍‘𝑈) ↔ 𝑈 ⊆ (𝑍‘𝑇))) |
11 | 1, 10 | mpbid 234 | 1 ⊢ (𝜑 → 𝑈 ⊆ (𝑍‘𝑇)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 = wceq 1537 ∈ wcel 2114 ⊆ wss 3938 ‘cfv 6357 Basecbs 16485 SubGrpcsubg 18275 Cntzccntz 18447 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-rep 5192 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-ral 3145 df-rex 3146 df-reu 3147 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-ov 7161 df-subg 18278 df-cntz 18449 |
This theorem is referenced by: subgdisj2 18820 pj2f 18826 pj1id 18827 dprdcntz2 19162 dmdprdsplit2lem 19169 dmdprdsplit2 19170 |
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