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Theorem thincinv 46340
Description: In a thin category, 𝐹 is an inverse of 𝐺 iff 𝐹 is a section of 𝐺 (Contributed by Zhi Wang, 24-Sep-2024.)
Hypotheses
Ref Expression
thincsect.c (𝜑𝐶 ∈ ThinCat)
thincsect.b 𝐵 = (Base‘𝐶)
thincsect.x (𝜑𝑋𝐵)
thincsect.y (𝜑𝑌𝐵)
thincsect.s 𝑆 = (Sect‘𝐶)
thincinv.n 𝑁 = (Inv‘𝐶)
Assertion
Ref Expression
thincinv (𝜑 → (𝐹(𝑋𝑁𝑌)𝐺𝐹(𝑋𝑆𝑌)𝐺))

Proof of Theorem thincinv
StepHypRef Expression
1 thincsect.b . . 3 𝐵 = (Base‘𝐶)
2 thincinv.n . . 3 𝑁 = (Inv‘𝐶)
3 thincsect.c . . . 4 (𝜑𝐶 ∈ ThinCat)
43thinccd 46306 . . 3 (𝜑𝐶 ∈ Cat)
5 thincsect.x . . 3 (𝜑𝑋𝐵)
6 thincsect.y . . 3 (𝜑𝑌𝐵)
7 thincsect.s . . 3 𝑆 = (Sect‘𝐶)
81, 2, 4, 5, 6, 7isinv 17472 . 2 (𝜑 → (𝐹(𝑋𝑁𝑌)𝐺 ↔ (𝐹(𝑋𝑆𝑌)𝐺𝐺(𝑌𝑆𝑋)𝐹)))
93, 1, 5, 6, 7thincsect2 46339 . . 3 (𝜑 → (𝐹(𝑋𝑆𝑌)𝐺𝐺(𝑌𝑆𝑋)𝐹))
109biimpa 477 . 2 ((𝜑𝐹(𝑋𝑆𝑌)𝐺) → 𝐺(𝑌𝑆𝑋)𝐹)
118, 10mpbiran3d 46142 1 (𝜑 → (𝐹(𝑋𝑁𝑌)𝐺𝐹(𝑋𝑆𝑌)𝐺))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205   = wceq 1539  wcel 2106   class class class wbr 5074  cfv 6433  (class class class)co 7275  Basecbs 16912  Sectcsect 17456  Invcinv 17457  ThinCatcthinc 46300
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-1st 7831  df-2nd 7832  df-cat 17377  df-cid 17378  df-sect 17459  df-inv 17460  df-thinc 46301
This theorem is referenced by: (None)
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