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Theorem rngcsect 41298
 Description: A section in the category of non-unital rings, written out. (Contributed by AV, 28-Feb-2020.)
Hypotheses
Ref Expression
rngcsect.c 𝐶 = (RngCat‘𝑈)
rngcsect.b 𝐵 = (Base‘𝐶)
rngcsect.u (𝜑𝑈𝑉)
rngcsect.x (𝜑𝑋𝐵)
rngcsect.y (𝜑𝑌𝐵)
rngcsect.e 𝐸 = (Base‘𝑋)
rngcsect.n 𝑆 = (Sect‘𝐶)
Assertion
Ref Expression
rngcsect (𝜑 → (𝐹(𝑋𝑆𝑌)𝐺 ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐺𝐹) = ( I ↾ 𝐸))))

Proof of Theorem rngcsect
StepHypRef Expression
1 rngcsect.b . . 3 𝐵 = (Base‘𝐶)
2 eqid 2621 . . 3 (Hom ‘𝐶) = (Hom ‘𝐶)
3 eqid 2621 . . 3 (comp‘𝐶) = (comp‘𝐶)
4 eqid 2621 . . 3 (Id‘𝐶) = (Id‘𝐶)
5 rngcsect.n . . 3 𝑆 = (Sect‘𝐶)
6 rngcsect.u . . . 4 (𝜑𝑈𝑉)
7 rngcsect.c . . . . 5 𝐶 = (RngCat‘𝑈)
87rngccat 41296 . . . 4 (𝑈𝑉𝐶 ∈ Cat)
96, 8syl 17 . . 3 (𝜑𝐶 ∈ Cat)
10 rngcsect.x . . 3 (𝜑𝑋𝐵)
11 rngcsect.y . . 3 (𝜑𝑌𝐵)
121, 2, 3, 4, 5, 9, 10, 11issect 16353 . 2 (𝜑 → (𝐹(𝑋𝑆𝑌)𝐺 ↔ (𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋))))
137, 1, 6, 2, 10, 11rngchom 41285 . . . . . . 7 (𝜑 → (𝑋(Hom ‘𝐶)𝑌) = (𝑋 RngHomo 𝑌))
1413eleq2d 2684 . . . . . 6 (𝜑 → (𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ↔ 𝐹 ∈ (𝑋 RngHomo 𝑌)))
157, 1, 6, 2, 11, 10rngchom 41285 . . . . . . 7 (𝜑 → (𝑌(Hom ‘𝐶)𝑋) = (𝑌 RngHomo 𝑋))
1615eleq2d 2684 . . . . . 6 (𝜑 → (𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋) ↔ 𝐺 ∈ (𝑌 RngHomo 𝑋)))
1714, 16anbi12d 746 . . . . 5 (𝜑 → ((𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋)) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))))
1817anbi1d 740 . . . 4 (𝜑 → (((𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋)) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋)) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋))))
196adantr 481 . . . . . . 7 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝑈𝑉)
2010adantr 481 . . . . . . . 8 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝑋𝐵)
217, 1, 6rngcbas 41283 . . . . . . . . . . 11 (𝜑𝐵 = (𝑈 ∩ Rng))
2221eleq2d 2684 . . . . . . . . . 10 (𝜑 → (𝑋𝐵𝑋 ∈ (𝑈 ∩ Rng)))
23 inss1 3817 . . . . . . . . . . . 12 (𝑈 ∩ Rng) ⊆ 𝑈
2423a1i 11 . . . . . . . . . . 11 (𝜑 → (𝑈 ∩ Rng) ⊆ 𝑈)
2524sseld 3587 . . . . . . . . . 10 (𝜑 → (𝑋 ∈ (𝑈 ∩ Rng) → 𝑋𝑈))
2622, 25sylbid 230 . . . . . . . . 9 (𝜑 → (𝑋𝐵𝑋𝑈))
2726adantr 481 . . . . . . . 8 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → (𝑋𝐵𝑋𝑈))
2820, 27mpd 15 . . . . . . 7 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝑋𝑈)
2911adantr 481 . . . . . . . 8 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝑌𝐵)
3021eleq2d 2684 . . . . . . . . . 10 (𝜑 → (𝑌𝐵𝑌 ∈ (𝑈 ∩ Rng)))
3124sseld 3587 . . . . . . . . . 10 (𝜑 → (𝑌 ∈ (𝑈 ∩ Rng) → 𝑌𝑈))
3230, 31sylbid 230 . . . . . . . . 9 (𝜑 → (𝑌𝐵𝑌𝑈))
3332adantr 481 . . . . . . . 8 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → (𝑌𝐵𝑌𝑈))
3429, 33mpd 15 . . . . . . 7 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝑌𝑈)
35 eqid 2621 . . . . . . . . . 10 (Base‘𝑋) = (Base‘𝑋)
36 eqid 2621 . . . . . . . . . 10 (Base‘𝑌) = (Base‘𝑌)
3735, 36rnghmf 41217 . . . . . . . . 9 (𝐹 ∈ (𝑋 RngHomo 𝑌) → 𝐹:(Base‘𝑋)⟶(Base‘𝑌))
3837adantr 481 . . . . . . . 8 ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) → 𝐹:(Base‘𝑋)⟶(Base‘𝑌))
3938adantl 482 . . . . . . 7 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝐹:(Base‘𝑋)⟶(Base‘𝑌))
4036, 35rnghmf 41217 . . . . . . . . 9 (𝐺 ∈ (𝑌 RngHomo 𝑋) → 𝐺:(Base‘𝑌)⟶(Base‘𝑋))
4140adantl 482 . . . . . . . 8 ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) → 𝐺:(Base‘𝑌)⟶(Base‘𝑋))
4241adantl 482 . . . . . . 7 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → 𝐺:(Base‘𝑌)⟶(Base‘𝑋))
437, 19, 3, 28, 34, 28, 39, 42rngcco 41289 . . . . . 6 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = (𝐺𝐹))
44 rngcsect.e . . . . . . . 8 𝐸 = (Base‘𝑋)
457, 1, 4, 6, 10, 44rngcid 41297 . . . . . . 7 (𝜑 → ((Id‘𝐶)‘𝑋) = ( I ↾ 𝐸))
4645adantr 481 . . . . . 6 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → ((Id‘𝐶)‘𝑋) = ( I ↾ 𝐸))
4743, 46eqeq12d 2636 . . . . 5 ((𝜑 ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) → ((𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋) ↔ (𝐺𝐹) = ( I ↾ 𝐸)))
4847pm5.32da 672 . . . 4 (𝜑 → (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋)) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺𝐹) = ( I ↾ 𝐸))))
4918, 48bitrd 268 . . 3 (𝜑 → (((𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋)) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋)) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺𝐹) = ( I ↾ 𝐸))))
50 df-3an 1038 . . 3 ((𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋)) ↔ ((𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋)) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋)))
51 df-3an 1038 . . 3 ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐺𝐹) = ( I ↾ 𝐸)) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺𝐹) = ( I ↾ 𝐸)))
5249, 50, 513bitr4g 303 . 2 (𝜑 → ((𝐹 ∈ (𝑋(Hom ‘𝐶)𝑌) ∧ 𝐺 ∈ (𝑌(Hom ‘𝐶)𝑋) ∧ (𝐺(⟨𝑋, 𝑌⟩(comp‘𝐶)𝑋)𝐹) = ((Id‘𝐶)‘𝑋)) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐺𝐹) = ( I ↾ 𝐸))))
5312, 52bitrd 268 1 (𝜑 → (𝐹(𝑋𝑆𝑌)𝐺 ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐺𝐹) = ( I ↾ 𝐸))))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   ∧ w3a 1036   = wceq 1480   ∈ wcel 1987   ∩ cin 3559   ⊆ wss 3560  ⟨cop 4161   class class class wbr 4623   I cid 4994   ↾ cres 5086   ∘ ccom 5088  ⟶wf 5853  ‘cfv 5857  (class class class)co 6615  Basecbs 15800  Hom chom 15892  compcco 15893  Catccat 16265  Idccid 16266  Sectcsect 16344  Rngcrng 41192   RngHomo crngh 41203  RngCatcrngc 41275 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4741  ax-sep 4751  ax-nul 4759  ax-pow 4813  ax-pr 4877  ax-un 6914  ax-cnex 9952  ax-resscn 9953  ax-1cn 9954  ax-icn 9955  ax-addcl 9956  ax-addrcl 9957  ax-mulcl 9958  ax-mulrcl 9959  ax-mulcom 9960  ax-addass 9961  ax-mulass 9962  ax-distr 9963  ax-i2m1 9964  ax-1ne0 9965  ax-1rid 9966  ax-rnegex 9967  ax-rrecex 9968  ax-cnre 9969  ax-pre-lttri 9970  ax-pre-lttrn 9971  ax-pre-ltadd 9972  ax-pre-mulgt0 9973 This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-fal 1486  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2913  df-rex 2914  df-reu 2915  df-rmo 2916  df-rab 2917  df-v 3192  df-sbc 3423  df-csb 3520  df-dif 3563  df-un 3565  df-in 3567  df-ss 3574  df-pss 3576  df-nul 3898  df-if 4065  df-pw 4138  df-sn 4156  df-pr 4158  df-tp 4160  df-op 4162  df-uni 4410  df-int 4448  df-iun 4494  df-br 4624  df-opab 4684  df-mpt 4685  df-tr 4723  df-eprel 4995  df-id 4999  df-po 5005  df-so 5006  df-fr 5043  df-we 5045  df-xp 5090  df-rel 5091  df-cnv 5092  df-co 5093  df-dm 5094  df-rn 5095  df-res 5096  df-ima 5097  df-pred 5649  df-ord 5695  df-on 5696  df-lim 5697  df-suc 5698  df-iota 5820  df-fun 5859  df-fn 5860  df-f 5861  df-f1 5862  df-fo 5863  df-f1o 5864  df-fv 5865  df-riota 6576  df-ov 6618  df-oprab 6619  df-mpt2 6620  df-om 7028  df-1st 7128  df-2nd 7129  df-wrecs 7367  df-recs 7428  df-rdg 7466  df-1o 7520  df-oadd 7524  df-er 7702  df-map 7819  df-pm 7820  df-ixp 7869  df-en 7916  df-dom 7917  df-sdom 7918  df-fin 7919  df-pnf 10036  df-mnf 10037  df-xr 10038  df-ltxr 10039  df-le 10040  df-sub 10228  df-neg 10229  df-nn 10981  df-2 11039  df-3 11040  df-4 11041  df-5 11042  df-6 11043  df-7 11044  df-8 11045  df-9 11046  df-n0 11253  df-z 11338  df-dec 11454  df-uz 11648  df-fz 12285  df-struct 15802  df-ndx 15803  df-slot 15804  df-base 15805  df-sets 15806  df-ress 15807  df-plusg 15894  df-hom 15906  df-cco 15907  df-0g 16042  df-cat 16269  df-cid 16270  df-homf 16271  df-sect 16347  df-ssc 16410  df-resc 16411  df-subc 16412  df-estrc 16703  df-mgm 17182  df-sgrp 17224  df-mnd 17235  df-mhm 17275  df-grp 17365  df-ghm 17598  df-abl 18136  df-mgp 18430  df-mgmhm 41097  df-rng0 41193  df-rnghomo 41205  df-rngc 41277 This theorem is referenced by:  rngcinv  41299
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