Theorem cosselrels 39224

Description: Cosets of sets are elements of the relations class. Implies ⊢ (𝑅 ∈ Rels → ≀ 𝑅 ∈ Rels ). (Contributed by Peter Mazsa, 25-Aug-2021.)

Assertion

Ref	Expression
cosselrels	⊢ (𝐴 ∈ 𝑉 → ≀ 𝐴 ∈ Rels )

Proof of Theorem cosselrels

Step	Hyp	Ref	Expression
1		cossex 39158	. 2 ⊢ (𝐴 ∈ 𝑉 → ≀ 𝐴 ∈ V)
2		relcoss 39162	. . 3 ⊢ Rel ≀ 𝐴
3		elrelsrel 39091	. . 3 ⊢ ( ≀ 𝐴 ∈ V → ( ≀ 𝐴 ∈ Rels ↔ Rel ≀ 𝐴))
4	2, 3	mpbiri 261	. 2 ⊢ ( ≀ 𝐴 ∈ V → ≀ 𝐴 ∈ Rels )
5	1, 4	syl 18	1 ⊢ (𝐴 ∈ 𝑉 → ≀ 𝐴 ∈ Rels )

Syntax hints:   → wi 4   ∈ wcel 2143  Vcvv 3455  Rel wrel 5666   ≀ ccoss 38832   Rels crels 38834

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-ext 2735  ax-sep 5257  ax-pow 5336  ax-pr 5404  ax-un 7732

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-pw 4564  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-br 5110  df-opab 5174  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-rels 39089  df-coss 39150

This theorem is referenced by:  cosscnvelrels  39226  dffunsALTV2  39418  dffunsALTV3  39419  dffunsALTV4  39420  elfunsALTV2  39427  elfunsALTV3  39428  elfunsALTV4  39429  elfunsALTV5  39430