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Theorem pet2 38849
Description: Partition-Equivalence Theorem, with general 𝑅. This theorem (together with pet 38850 and pets 38851) is the main result of my investigation into set theory, see the comment of pet 38850. (Contributed by Peter Mazsa, 24-May-2021.) (Revised by Peter Mazsa, 23-Sep-2021.)
Assertion
Ref Expression
pet2 (( Disj (𝑅 ⋉ ( E ↾ 𝐴)) ∧ (dom (𝑅 ⋉ ( E ↾ 𝐴)) / (𝑅 ⋉ ( E ↾ 𝐴))) = 𝐴) ↔ ( EqvRel ≀ (𝑅 ⋉ ( E ↾ 𝐴)) ∧ (dom ≀ (𝑅 ⋉ ( E ↾ 𝐴)) / ≀ (𝑅 ⋉ ( E ↾ 𝐴))) = 𝐴))

Proof of Theorem pet2
StepHypRef Expression
1 eqvrelqseqdisj5 38832 . 2 (( EqvRel ≀ (𝑅 ⋉ ( E ↾ 𝐴)) ∧ (dom ≀ (𝑅 ⋉ ( E ↾ 𝐴)) / ≀ (𝑅 ⋉ ( E ↾ 𝐴))) = 𝐴) → Disj (𝑅 ⋉ ( E ↾ 𝐴)))
21petlem 38811 1 (( Disj (𝑅 ⋉ ( E ↾ 𝐴)) ∧ (dom (𝑅 ⋉ ( E ↾ 𝐴)) / (𝑅 ⋉ ( E ↾ 𝐴))) = 𝐴) ↔ ( EqvRel ≀ (𝑅 ⋉ ( E ↾ 𝐴)) ∧ (dom ≀ (𝑅 ⋉ ( E ↾ 𝐴)) / ≀ (𝑅 ⋉ ( E ↾ 𝐴))) = 𝐴))
Colors of variables: wff setvar class
Syntax hints:  wb 206  wa 395   = wceq 1540   E cep 5540  ccnv 5640  dom cdm 5641  cres 5643   / cqs 8673  cxrn 38175  ccoss 38176   EqvRel weqvrel 38193   Disj wdisjALTV 38210
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2702  ax-sep 5254  ax-nul 5264  ax-pr 5390  ax-un 7714
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-ral 3046  df-rex 3055  df-rmo 3356  df-rab 3409  df-v 3452  df-dif 3920  df-un 3922  df-in 3924  df-ss 3934  df-nul 4300  df-if 4492  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-br 5111  df-opab 5173  df-mpt 5192  df-id 5536  df-eprel 5541  df-xp 5647  df-rel 5648  df-cnv 5649  df-co 5650  df-dm 5651  df-rn 5652  df-res 5653  df-ima 5654  df-iota 6467  df-fun 6516  df-fn 6517  df-f 6518  df-fo 6520  df-fv 6522  df-1st 7971  df-2nd 7972  df-ec 8676  df-qs 8680  df-xrn 38360  df-coss 38409  df-refrel 38510  df-cnvrefrel 38525  df-symrel 38542  df-trrel 38572  df-eqvrel 38583  df-funALTV 38681  df-disjALTV 38704  df-eldisj 38706
This theorem is referenced by:  pet  38850
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