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Theorem lcvexchlem4 33342
 Description: Lemma for lcvexch 33344. (Contributed by NM, 10-Jan-2015.)
Hypotheses
Ref Expression
lcvexch.s 𝑆 = (LSubSp‘𝑊)
lcvexch.p = (LSSum‘𝑊)
lcvexch.c 𝐶 = ( ⋖L𝑊)
lcvexch.w (𝜑𝑊 ∈ LMod)
lcvexch.t (𝜑𝑇𝑆)
lcvexch.u (𝜑𝑈𝑆)
lcvexch.f (𝜑𝑇𝐶(𝑇 𝑈))
Assertion
Ref Expression
lcvexchlem4 (𝜑 → (𝑇𝑈)𝐶𝑈)

Proof of Theorem lcvexchlem4
Dummy variables 𝑠 𝑟 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 lcvexch.s . . . 4 𝑆 = (LSubSp‘𝑊)
2 lcvexch.c . . . 4 𝐶 = ( ⋖L𝑊)
3 lcvexch.w . . . 4 (𝜑𝑊 ∈ LMod)
4 lcvexch.t . . . 4 (𝜑𝑇𝑆)
5 lcvexch.u . . . . 5 (𝜑𝑈𝑆)
6 lcvexch.p . . . . . 6 = (LSSum‘𝑊)
71, 6lsmcl 18904 . . . . 5 ((𝑊 ∈ LMod ∧ 𝑇𝑆𝑈𝑆) → (𝑇 𝑈) ∈ 𝑆)
83, 4, 5, 7syl3anc 1318 . . . 4 (𝜑 → (𝑇 𝑈) ∈ 𝑆)
9 lcvexch.f . . . 4 (𝜑𝑇𝐶(𝑇 𝑈))
101, 2, 3, 4, 8, 9lcvpss 33329 . . 3 (𝜑𝑇 ⊊ (𝑇 𝑈))
111, 6, 2, 3, 4, 5lcvexchlem1 33339 . . 3 (𝜑 → (𝑇 ⊊ (𝑇 𝑈) ↔ (𝑇𝑈) ⊊ 𝑈))
1210, 11mpbid 221 . 2 (𝜑 → (𝑇𝑈) ⊊ 𝑈)
1333ad2ant1 1075 . . . . . . . . 9 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑊 ∈ LMod)
141lsssssubg 18779 . . . . . . . . 9 (𝑊 ∈ LMod → 𝑆 ⊆ (SubGrp‘𝑊))
1513, 14syl 17 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑆 ⊆ (SubGrp‘𝑊))
16 simp2 1055 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑠𝑆)
1715, 16sseldd 3569 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑠 ∈ (SubGrp‘𝑊))
1843ad2ant1 1075 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑇𝑆)
1915, 18sseldd 3569 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑇 ∈ (SubGrp‘𝑊))
206lsmub2 17895 . . . . . . 7 ((𝑠 ∈ (SubGrp‘𝑊) ∧ 𝑇 ∈ (SubGrp‘𝑊)) → 𝑇 ⊆ (𝑠 𝑇))
2117, 19, 20syl2anc 691 . . . . . 6 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑇 ⊆ (𝑠 𝑇))
2253ad2ant1 1075 . . . . . . . . 9 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑈𝑆)
2315, 22sseldd 3569 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑈 ∈ (SubGrp‘𝑊))
24 simp3r 1083 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑠𝑈)
256lsmless1 17897 . . . . . . . 8 ((𝑈 ∈ (SubGrp‘𝑊) ∧ 𝑇 ∈ (SubGrp‘𝑊) ∧ 𝑠𝑈) → (𝑠 𝑇) ⊆ (𝑈 𝑇))
2623, 19, 24, 25syl3anc 1318 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (𝑠 𝑇) ⊆ (𝑈 𝑇))
27 lmodabl 18733 . . . . . . . . . 10 (𝑊 ∈ LMod → 𝑊 ∈ Abel)
283, 27syl 17 . . . . . . . . 9 (𝜑𝑊 ∈ Abel)
293, 14syl 17 . . . . . . . . . 10 (𝜑𝑆 ⊆ (SubGrp‘𝑊))
3029, 4sseldd 3569 . . . . . . . . 9 (𝜑𝑇 ∈ (SubGrp‘𝑊))
3129, 5sseldd 3569 . . . . . . . . 9 (𝜑𝑈 ∈ (SubGrp‘𝑊))
326lsmcom 18084 . . . . . . . . 9 ((𝑊 ∈ Abel ∧ 𝑇 ∈ (SubGrp‘𝑊) ∧ 𝑈 ∈ (SubGrp‘𝑊)) → (𝑇 𝑈) = (𝑈 𝑇))
3328, 30, 31, 32syl3anc 1318 . . . . . . . 8 (𝜑 → (𝑇 𝑈) = (𝑈 𝑇))
34333ad2ant1 1075 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (𝑇 𝑈) = (𝑈 𝑇))
3526, 34sseqtr4d 3605 . . . . . 6 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (𝑠 𝑇) ⊆ (𝑇 𝑈))
3693ad2ant1 1075 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑇𝐶(𝑇 𝑈))
371, 2, 3, 4, 8lcvbr3 33328 . . . . . . . . . 10 (𝜑 → (𝑇𝐶(𝑇 𝑈) ↔ (𝑇 ⊊ (𝑇 𝑈) ∧ ∀𝑟𝑆 ((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) → (𝑟 = 𝑇𝑟 = (𝑇 𝑈))))))
3837adantr 480 . . . . . . . . 9 ((𝜑𝑠𝑆) → (𝑇𝐶(𝑇 𝑈) ↔ (𝑇 ⊊ (𝑇 𝑈) ∧ ∀𝑟𝑆 ((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) → (𝑟 = 𝑇𝑟 = (𝑇 𝑈))))))
393adantr 480 . . . . . . . . . . . 12 ((𝜑𝑠𝑆) → 𝑊 ∈ LMod)
40 simpr 476 . . . . . . . . . . . 12 ((𝜑𝑠𝑆) → 𝑠𝑆)
414adantr 480 . . . . . . . . . . . 12 ((𝜑𝑠𝑆) → 𝑇𝑆)
421, 6lsmcl 18904 . . . . . . . . . . . 12 ((𝑊 ∈ LMod ∧ 𝑠𝑆𝑇𝑆) → (𝑠 𝑇) ∈ 𝑆)
4339, 40, 41, 42syl3anc 1318 . . . . . . . . . . 11 ((𝜑𝑠𝑆) → (𝑠 𝑇) ∈ 𝑆)
44 sseq2 3590 . . . . . . . . . . . . . 14 (𝑟 = (𝑠 𝑇) → (𝑇𝑟𝑇 ⊆ (𝑠 𝑇)))
45 sseq1 3589 . . . . . . . . . . . . . 14 (𝑟 = (𝑠 𝑇) → (𝑟 ⊆ (𝑇 𝑈) ↔ (𝑠 𝑇) ⊆ (𝑇 𝑈)))
4644, 45anbi12d 743 . . . . . . . . . . . . 13 (𝑟 = (𝑠 𝑇) → ((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) ↔ (𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈))))
47 eqeq1 2614 . . . . . . . . . . . . . 14 (𝑟 = (𝑠 𝑇) → (𝑟 = 𝑇 ↔ (𝑠 𝑇) = 𝑇))
48 eqeq1 2614 . . . . . . . . . . . . . 14 (𝑟 = (𝑠 𝑇) → (𝑟 = (𝑇 𝑈) ↔ (𝑠 𝑇) = (𝑇 𝑈)))
4947, 48orbi12d 742 . . . . . . . . . . . . 13 (𝑟 = (𝑠 𝑇) → ((𝑟 = 𝑇𝑟 = (𝑇 𝑈)) ↔ ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈))))
5046, 49imbi12d 333 . . . . . . . . . . . 12 (𝑟 = (𝑠 𝑇) → (((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) → (𝑟 = 𝑇𝑟 = (𝑇 𝑈))) ↔ ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))))
5150rspcv 3278 . . . . . . . . . . 11 ((𝑠 𝑇) ∈ 𝑆 → (∀𝑟𝑆 ((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) → (𝑟 = 𝑇𝑟 = (𝑇 𝑈))) → ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))))
5243, 51syl 17 . . . . . . . . . 10 ((𝜑𝑠𝑆) → (∀𝑟𝑆 ((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) → (𝑟 = 𝑇𝑟 = (𝑇 𝑈))) → ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))))
5352adantld 482 . . . . . . . . 9 ((𝜑𝑠𝑆) → ((𝑇 ⊊ (𝑇 𝑈) ∧ ∀𝑟𝑆 ((𝑇𝑟𝑟 ⊆ (𝑇 𝑈)) → (𝑟 = 𝑇𝑟 = (𝑇 𝑈)))) → ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))))
5438, 53sylbid 229 . . . . . . . 8 ((𝜑𝑠𝑆) → (𝑇𝐶(𝑇 𝑈) → ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))))
55543adant3 1074 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (𝑇𝐶(𝑇 𝑈) → ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))))
5636, 55mpd 15 . . . . . 6 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → ((𝑇 ⊆ (𝑠 𝑇) ∧ (𝑠 𝑇) ⊆ (𝑇 𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈))))
5721, 35, 56mp2and 711 . . . . 5 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → ((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)))
58 ineq1 3769 . . . . . . 7 ((𝑠 𝑇) = 𝑇 → ((𝑠 𝑇) ∩ 𝑈) = (𝑇𝑈))
59 simp3l 1082 . . . . . . . . 9 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (𝑇𝑈) ⊆ 𝑠)
601, 6, 2, 13, 18, 22, 16, 59, 24lcvexchlem2 33340 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → ((𝑠 𝑇) ∩ 𝑈) = 𝑠)
6160eqeq1d 2612 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (((𝑠 𝑇) ∩ 𝑈) = (𝑇𝑈) ↔ 𝑠 = (𝑇𝑈)))
6258, 61syl5ib 233 . . . . . 6 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → ((𝑠 𝑇) = 𝑇𝑠 = (𝑇𝑈)))
63 ineq1 3769 . . . . . . 7 ((𝑠 𝑇) = (𝑇 𝑈) → ((𝑠 𝑇) ∩ 𝑈) = ((𝑇 𝑈) ∩ 𝑈))
646lsmub2 17895 . . . . . . . . . 10 ((𝑇 ∈ (SubGrp‘𝑊) ∧ 𝑈 ∈ (SubGrp‘𝑊)) → 𝑈 ⊆ (𝑇 𝑈))
6519, 23, 64syl2anc 691 . . . . . . . . 9 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → 𝑈 ⊆ (𝑇 𝑈))
66 sseqin2 3779 . . . . . . . . 9 (𝑈 ⊆ (𝑇 𝑈) ↔ ((𝑇 𝑈) ∩ 𝑈) = 𝑈)
6765, 66sylib 207 . . . . . . . 8 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → ((𝑇 𝑈) ∩ 𝑈) = 𝑈)
6860, 67eqeq12d 2625 . . . . . . 7 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (((𝑠 𝑇) ∩ 𝑈) = ((𝑇 𝑈) ∩ 𝑈) ↔ 𝑠 = 𝑈))
6963, 68syl5ib 233 . . . . . 6 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → ((𝑠 𝑇) = (𝑇 𝑈) → 𝑠 = 𝑈))
7062, 69orim12d 879 . . . . 5 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (((𝑠 𝑇) = 𝑇 ∨ (𝑠 𝑇) = (𝑇 𝑈)) → (𝑠 = (𝑇𝑈) ∨ 𝑠 = 𝑈)))
7157, 70mpd 15 . . . 4 ((𝜑𝑠𝑆 ∧ ((𝑇𝑈) ⊆ 𝑠𝑠𝑈)) → (𝑠 = (𝑇𝑈) ∨ 𝑠 = 𝑈))
72713exp 1256 . . 3 (𝜑 → (𝑠𝑆 → (((𝑇𝑈) ⊆ 𝑠𝑠𝑈) → (𝑠 = (𝑇𝑈) ∨ 𝑠 = 𝑈))))
7372ralrimiv 2948 . 2 (𝜑 → ∀𝑠𝑆 (((𝑇𝑈) ⊆ 𝑠𝑠𝑈) → (𝑠 = (𝑇𝑈) ∨ 𝑠 = 𝑈)))
741lssincl 18786 . . . 4 ((𝑊 ∈ LMod ∧ 𝑇𝑆𝑈𝑆) → (𝑇𝑈) ∈ 𝑆)
753, 4, 5, 74syl3anc 1318 . . 3 (𝜑 → (𝑇𝑈) ∈ 𝑆)
761, 2, 3, 75, 5lcvbr3 33328 . 2 (𝜑 → ((𝑇𝑈)𝐶𝑈 ↔ ((𝑇𝑈) ⊊ 𝑈 ∧ ∀𝑠𝑆 (((𝑇𝑈) ⊆ 𝑠𝑠𝑈) → (𝑠 = (𝑇𝑈) ∨ 𝑠 = 𝑈)))))
7712, 73, 76mpbir2and 959 1 (𝜑 → (𝑇𝑈)𝐶𝑈)
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 195   ∨ wo 382   ∧ wa 383   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977  ∀wral 2896   ∩ cin 3539   ⊆ wss 3540   ⊊ wpss 3541   class class class wbr 4583  ‘cfv 5804  (class class class)co 6549  SubGrpcsubg 17411  LSSumclsm 17872  Abelcabl 18017  LModclmod 18686  LSubSpclss 18753   ⋖L clcv 33323 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892 This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-iin 4458  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-oadd 7451  df-er 7629  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-nn 10898  df-2 10956  df-ndx 15698  df-slot 15699  df-base 15700  df-sets 15701  df-ress 15702  df-plusg 15781  df-0g 15925  df-mre 16069  df-mrc 16070  df-acs 16072  df-mgm 17065  df-sgrp 17107  df-mnd 17118  df-submnd 17159  df-grp 17248  df-minusg 17249  df-sbg 17250  df-subg 17414  df-cntz 17573  df-lsm 17874  df-cmn 18018  df-abl 18019  df-mgp 18313  df-ur 18325  df-ring 18372  df-lmod 18688  df-lss 18754  df-lcv 33324 This theorem is referenced by:  lcvexch  33344  lsatcvat3  33357
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