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Theorem cntzrecd 19608
Description: Commute the "subgroups commute" predicate. (Contributed by Mario Carneiro, 21-Apr-2016.)
Hypotheses
Ref Expression
cntzrecd.z 𝑍 = (Cntz‘𝐺)
cntzrecd.t (𝜑𝑇 ∈ (SubGrp‘𝐺))
cntzrecd.u (𝜑𝑈 ∈ (SubGrp‘𝐺))
cntzrecd.s (𝜑𝑇 ⊆ (𝑍𝑈))
Assertion
Ref Expression
cntzrecd (𝜑𝑈 ⊆ (𝑍𝑇))

Proof of Theorem cntzrecd
StepHypRef Expression
1 cntzrecd.s . 2 (𝜑𝑇 ⊆ (𝑍𝑈))
2 cntzrecd.t . . 3 (𝜑𝑇 ∈ (SubGrp‘𝐺))
3 cntzrecd.u . . 3 (𝜑𝑈 ∈ (SubGrp‘𝐺))
4 eqid 2729 . . . . 5 (Base‘𝐺) = (Base‘𝐺)
54subgss 19059 . . . 4 (𝑇 ∈ (SubGrp‘𝐺) → 𝑇 ⊆ (Base‘𝐺))
64subgss 19059 . . . 4 (𝑈 ∈ (SubGrp‘𝐺) → 𝑈 ⊆ (Base‘𝐺))
7 cntzrecd.z . . . . 5 𝑍 = (Cntz‘𝐺)
84, 7cntzrec 19268 . . . 4 ((𝑇 ⊆ (Base‘𝐺) ∧ 𝑈 ⊆ (Base‘𝐺)) → (𝑇 ⊆ (𝑍𝑈) ↔ 𝑈 ⊆ (𝑍𝑇)))
95, 6, 8syl2an 596 . . 3 ((𝑇 ∈ (SubGrp‘𝐺) ∧ 𝑈 ∈ (SubGrp‘𝐺)) → (𝑇 ⊆ (𝑍𝑈) ↔ 𝑈 ⊆ (𝑍𝑇)))
102, 3, 9syl2anc 584 . 2 (𝜑 → (𝑇 ⊆ (𝑍𝑈) ↔ 𝑈 ⊆ (𝑍𝑇)))
111, 10mpbid 232 1 (𝜑𝑈 ⊆ (𝑍𝑇))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206   = wceq 1540  wcel 2109  wss 3914  cfv 6511  Basecbs 17179  SubGrpcsubg 19052  Cntzccntz 19247
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5234  ax-sep 5251  ax-nul 5261  ax-pow 5320  ax-pr 5387
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-ral 3045  df-rex 3054  df-reu 3355  df-rab 3406  df-v 3449  df-sbc 3754  df-csb 3863  df-dif 3917  df-un 3919  df-in 3921  df-ss 3931  df-nul 4297  df-if 4489  df-pw 4565  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4872  df-iun 4957  df-br 5108  df-opab 5170  df-mpt 5189  df-id 5533  df-xp 5644  df-rel 5645  df-cnv 5646  df-co 5647  df-dm 5648  df-rn 5649  df-res 5650  df-ima 5651  df-iota 6464  df-fun 6513  df-fn 6514  df-f 6515  df-f1 6516  df-fo 6517  df-f1o 6518  df-fv 6519  df-ov 7390  df-subg 19055  df-cntz 19249
This theorem is referenced by:  subgdisj2  19622  pj2f  19628  pj1id  19629  dprdcntz2  19970  dmdprdsplit2lem  19977  dmdprdsplit2  19978
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