| Mathbox for Peter Mazsa |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > disjdmqseqeq1 | Structured version Visualization version GIF version | ||
| Description: Lemma for the equality theorem for partition parteq1 38773. (Contributed by Peter Mazsa, 5-Oct-2021.) |
| Ref | Expression |
|---|---|
| disjdmqseqeq1 | ⊢ (𝑅 = 𝑆 → (( Disj 𝑅 ∧ (dom 𝑅 / 𝑅) = 𝐴) ↔ ( Disj 𝑆 ∧ (dom 𝑆 / 𝑆) = 𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | disjeq 38733 | . 2 ⊢ (𝑅 = 𝑆 → ( Disj 𝑅 ↔ Disj 𝑆)) | |
| 2 | dmqseqeq1 38641 | . 2 ⊢ (𝑅 = 𝑆 → ((dom 𝑅 / 𝑅) = 𝐴 ↔ (dom 𝑆 / 𝑆) = 𝐴)) | |
| 3 | 1, 2 | anbi12d 632 | 1 ⊢ (𝑅 = 𝑆 → (( Disj 𝑅 ∧ (dom 𝑅 / 𝑅) = 𝐴) ↔ ( Disj 𝑆 ∧ (dom 𝑆 / 𝑆) = 𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 dom cdm 5641 / cqs 8673 Disj wdisjALTV 38210 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pr 5390 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-clab 2709 df-cleq 2722 df-clel 2804 df-ral 3046 df-rex 3055 df-rab 3409 df-v 3452 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-sn 4593 df-pr 4595 df-op 4599 df-br 5111 df-opab 5173 df-id 5536 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-ec 8676 df-qs 8680 df-coss 38409 df-cnvrefrel 38525 df-funALTV 38681 df-disjALTV 38704 |
| This theorem is referenced by: parteq1 38773 |
| Copyright terms: Public domain | W3C validator |