Theorem disjimin 36786

Description: Disjointness condition for intersection. (Contributed by Peter Mazsa, 11-Jun-2021.) (Revised by Peter Mazsa, 28-Sep-2021.)

Assertion

Ref	Expression
disjimin	⊢ ( Disj 𝑆 → Disj (𝑅 ∩ 𝑆))

Proof of Theorem disjimin

Step	Hyp	Ref	Expression
1		inss2 4160	. 2 ⊢ (𝑅 ∩ 𝑆) ⊆ 𝑆
2	1	disjssi 36770	1 ⊢ ( Disj 𝑆 → Disj (𝑅 ∩ 𝑆))

Syntax hints:   → wi 4   ∩ cin 3882   Disj wdisjALTV 36294

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-11 2156  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-sn 4559  df-pr 4561  df-op 4565  df-br 5071  df-opab 5133  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-coss 36464  df-cnvrefrel 36570  df-funALTV 36720  df-disjALTV 36743

This theorem is referenced by:  disjiminres  36787