Theorem relcoels 39025

Description: Coelements on 𝐴 is a relation. (Contributed by Peter Mazsa, 5-Oct-2021.)

Assertion

Ref	Expression
relcoels	⊢ Rel ∼ 𝐴

Proof of Theorem relcoels

Step	Hyp	Ref	Expression
1		relcoss 39024	. 2 ⊢ Rel ≀ (◡ E ↾ 𝐴)
2		df-coels 39013	. . 3 ⊢ ∼ 𝐴 = ≀ (◡ E ↾ 𝐴)
3	2	releqi 5755	. 2 ⊢ (Rel ∼ 𝐴 ↔ Rel ≀ (◡ E ↾ 𝐴))
4	1, 3	mpbir 234	1 ⊢ Rel ∼ 𝐴

Syntax hints:   E cep 5551  ^◡ccnv 5651   ↾ cres 5654  Rel wrel 5657   ≀ ccoss 38694   ∼ ccoels 38695

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1818  ax-4 1832  ax-5 1933  ax-6 1990  ax-7 2031  ax-8 2147  ax-9 2155  ax-ext 2737

This theorem depends on definitions:  df-bi 210  df-an 401  df-tru 1566  df-ex 1803  df-sb 2094  df-clab 2744  df-cleq 2757  df-clel 2840  df-v 3459  df-ss 3924  df-opab 5168  df-xp 5658  df-rel 5659  df-coss 39012  df-coels 39013

This theorem is referenced by:  erimeq2  39274