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| Mirrors > Home > MPE Home > Th. List > Mathboxes > eqvrelqseqdisj4 | Structured version Visualization version GIF version | ||
| Description: Lemma for petincnvepres2 39970. (Contributed by Peter Mazsa, 31-Dec-2021.) |
| Ref | Expression |
|---|---|
| eqvrelqseqdisj4 | ⊢ (( EqvRel 𝑅 ∧ (𝐵 / 𝑅) = 𝐴) → Disj (𝑆 ∩ (◡ E ↾ 𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqvrelqseqdisj3 39953 | . 2 ⊢ (( EqvRel 𝑅 ∧ (𝐵 / 𝑅) = 𝐴) → Disj (◡ E ↾ 𝐴)) | |
| 2 | disjimin 39859 | . 2 ⊢ ( Disj (◡ E ↾ 𝐴) → Disj (𝑆 ∩ (◡ E ↾ 𝐴))) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (( EqvRel 𝑅 ∧ (𝐵 / 𝑅) = 𝐴) → Disj (𝑆 ∩ (◡ E ↾ 𝐴))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∩ cin 4089 E cep 5549 ◡ccnv 5649 ↾ cres 5652 / cqs 8717 EqvRel weqvrel 39208 Disj wdisjALTV 39227 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-br 5103 df-opab 5167 df-id 5545 df-eprel 5550 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-ec 8720 df-qs 8724 df-coss 39509 df-refrel 39600 df-cnvrefrel 39615 df-symrel 39632 df-trrel 39666 df-eqvrel 39677 df-funALTV 39775 df-disjALTV 39798 df-eldisj 39800 |
| This theorem is used by: petincnvepres2 39970 |
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