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Theorem trrelsuperreldg 40003
 Description: Concrete construction of a superclass of relation 𝑅 which is a transitive relation. (Contributed by RP, 25-Dec-2019.)
Hypotheses
Ref Expression
trrelsuperreldg.r (𝜑 → Rel 𝑅)
trrelsuperreldg.s (𝜑𝑆 = (dom 𝑅 × ran 𝑅))
Assertion
Ref Expression
trrelsuperreldg (𝜑 → (𝑅𝑆 ∧ (𝑆𝑆) ⊆ 𝑆))

Proof of Theorem trrelsuperreldg
StepHypRef Expression
1 trrelsuperreldg.r . . . 4 (𝜑 → Rel 𝑅)
2 relssdmrn 6114 . . . 4 (Rel 𝑅𝑅 ⊆ (dom 𝑅 × ran 𝑅))
31, 2syl 17 . . 3 (𝜑𝑅 ⊆ (dom 𝑅 × ran 𝑅))
4 trrelsuperreldg.s . . 3 (𝜑𝑆 = (dom 𝑅 × ran 𝑅))
53, 4sseqtrrd 4006 . 2 (𝜑𝑅𝑆)
6 xptrrel 14332 . . . 4 ((dom 𝑅 × ran 𝑅) ∘ (dom 𝑅 × ran 𝑅)) ⊆ (dom 𝑅 × ran 𝑅)
76a1i 11 . . 3 (𝜑 → ((dom 𝑅 × ran 𝑅) ∘ (dom 𝑅 × ran 𝑅)) ⊆ (dom 𝑅 × ran 𝑅))
84, 4coeq12d 5728 . . 3 (𝜑 → (𝑆𝑆) = ((dom 𝑅 × ran 𝑅) ∘ (dom 𝑅 × ran 𝑅)))
97, 8, 43sstr4d 4012 . 2 (𝜑 → (𝑆𝑆) ⊆ 𝑆)
105, 9jca 514 1 (𝜑 → (𝑅𝑆 ∧ (𝑆𝑆) ⊆ 𝑆))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 398   = wceq 1530   ⊆ wss 3934   × cxp 5546  dom cdm 5548  ran crn 5549   ∘ ccom 5552  Rel wrel 5553 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1904  ax-6 1963  ax-7 2008  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2153  ax-12 2169  ax-ext 2791  ax-sep 5194  ax-nul 5201  ax-pr 5320 This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1083  df-tru 1533  df-ex 1774  df-nf 1778  df-sb 2063  df-mo 2616  df-eu 2648  df-clab 2798  df-cleq 2812  df-clel 2891  df-nfc 2961  df-ne 3015  df-ral 3141  df-rex 3142  df-rab 3145  df-v 3495  df-dif 3937  df-un 3939  df-in 3941  df-ss 3950  df-nul 4290  df-if 4466  df-sn 4560  df-pr 4562  df-op 4566  df-br 5058  df-opab 5120  df-xp 5554  df-rel 5555  df-cnv 5556  df-co 5557  df-dm 5558  df-rn 5559  df-res 5560 This theorem is referenced by: (None)
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