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Theorem brcnvtrclfv 15013
Description: Two ways of expressing the transitive closure of the converse of a binary relation. (Contributed by RP, 9-May-2020.)
Assertion
Ref Expression
brcnvtrclfv ((𝑅𝑈𝐴𝑉𝐵𝑊) → (𝐴(t+‘𝑅)𝐵 ↔ ∀𝑟((𝑅𝑟 ∧ (𝑟𝑟) ⊆ 𝑟) → 𝐵𝑟𝐴)))
Distinct variable groups:   𝐴,𝑟   𝐵,𝑟   𝑅,𝑟
Allowed substitution hints:   𝑈(𝑟)   𝑉(𝑟)   𝑊(𝑟)

Proof of Theorem brcnvtrclfv
StepHypRef Expression
1 brcnvg 5849 . . 3 ((𝐴𝑉𝐵𝑊) → (𝐴(t+‘𝑅)𝐵𝐵(t+‘𝑅)𝐴))
213adant1 1142 . 2 ((𝑅𝑈𝐴𝑉𝐵𝑊) → (𝐴(t+‘𝑅)𝐵𝐵(t+‘𝑅)𝐴))
3 brtrclfv 15012 . . 3 (𝑅𝑈 → (𝐵(t+‘𝑅)𝐴 ↔ ∀𝑟((𝑅𝑟 ∧ (𝑟𝑟) ⊆ 𝑟) → 𝐵𝑟𝐴)))
433ad2ant1 1145 . 2 ((𝑅𝑈𝐴𝑉𝐵𝑊) → (𝐵(t+‘𝑅)𝐴 ↔ ∀𝑟((𝑅𝑟 ∧ (𝑟𝑟) ⊆ 𝑟) → 𝐵𝑟𝐴)))
52, 4bitrd 281 1 ((𝑅𝑈𝐴𝑉𝐵𝑊) → (𝐴(t+‘𝑅)𝐵 ↔ ∀𝑟((𝑅𝑟 ∧ (𝑟𝑟) ⊆ 𝑟) → 𝐵𝑟𝐴)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  wa 399  w3a 1097  wal 1557  wcel 2141  wss 3904   class class class wbr 5099  ccnv 5644  ccom 5649  cfv 6517  t+ctcl 14995
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-sep 5245  ax-pow 5321  ax-pr 5389  ax-un 7714
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-rab 3414  df-v 3455  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-int 4905  df-br 5100  df-opab 5162  df-mpt 5181  df-id 5540  df-xp 5651  df-rel 5652  df-cnv 5653  df-co 5654  df-dm 5655  df-rn 5656  df-res 5657  df-iota 6473  df-fun 6519  df-fv 6525  df-trcl 14997
This theorem is referenced by:  brcnvtrclfvcnv  15015
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