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Theorem elrefsymrelsrel 36612
Description: For sets, being an element of the class of reflexive and symmetric relations is equivalent to satisfying the reflexive and symmetric relation predicates. (Contributed by Peter Mazsa, 23-Aug-2021.)
Assertion
Ref Expression
elrefsymrelsrel (𝑅𝑉 → (𝑅 ∈ ( RefRels ∩ SymRels ) ↔ ( RefRel 𝑅 ∧ SymRel 𝑅)))

Proof of Theorem elrefsymrelsrel
StepHypRef Expression
1 elin 3899 . 2 (𝑅 ∈ ( RefRels ∩ SymRels ) ↔ (𝑅 ∈ RefRels ∧ 𝑅 ∈ SymRels ))
2 elrefrelsrel 36564 . . 3 (𝑅𝑉 → (𝑅 ∈ RefRels ↔ RefRel 𝑅))
3 elsymrelsrel 36598 . . 3 (𝑅𝑉 → (𝑅 ∈ SymRels ↔ SymRel 𝑅))
42, 3anbi12d 630 . 2 (𝑅𝑉 → ((𝑅 ∈ RefRels ∧ 𝑅 ∈ SymRels ) ↔ ( RefRel 𝑅 ∧ SymRel 𝑅)))
51, 4syl5bb 282 1 (𝑅𝑉 → (𝑅 ∈ ( RefRels ∩ SymRels ) ↔ ( RefRel 𝑅 ∧ SymRel 𝑅)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 395  wcel 2108  cin 3882   RefRels crefrels 36265   RefRel wrefrel 36266   SymRels csymrels 36271   SymRel wsymrel 36272
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-clab 2716  df-cleq 2730  df-clel 2817  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-br 5071  df-opab 5133  df-xp 5586  df-rel 5587  df-cnv 5588  df-dm 5590  df-rn 5591  df-res 5592  df-rels 36530  df-ssr 36543  df-refs 36555  df-refrels 36556  df-refrel 36557  df-syms 36583  df-symrels 36584  df-symrel 36585
This theorem is referenced by: (None)
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