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| Mirrors > Home > MPE Home > Th. List > Mathboxes > disjxrnres5 | Structured version Visualization version GIF version | ||
| Description: Disjoint range Cartesian product. (Contributed by Peter Mazsa, 25-Aug-2023.) |
| Ref | Expression |
|---|---|
| disjxrnres5 | ⊢ ( Disj (𝑅 ⋉ (𝑆 ↾ 𝐴)) ↔ ∀𝑢 ∈ 𝐴 ∀𝑣 ∈ 𝐴 (𝑢 = 𝑣 ∨ ([𝑢](𝑅 ⋉ 𝑆) ∩ [𝑣](𝑅 ⋉ 𝑆)) = ∅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrnres2 38806 | . . 3 ⊢ ((𝑅 ⋉ 𝑆) ↾ 𝐴) = (𝑅 ⋉ (𝑆 ↾ 𝐴)) | |
| 2 | 1 | disjeqi 39215 | . 2 ⊢ ( Disj ((𝑅 ⋉ 𝑆) ↾ 𝐴) ↔ Disj (𝑅 ⋉ (𝑆 ↾ 𝐴))) |
| 3 | xrnrel 38762 | . . 3 ⊢ Rel (𝑅 ⋉ 𝑆) | |
| 4 | disjres 39224 | . . 3 ⊢ (Rel (𝑅 ⋉ 𝑆) → ( Disj ((𝑅 ⋉ 𝑆) ↾ 𝐴) ↔ ∀𝑢 ∈ 𝐴 ∀𝑣 ∈ 𝐴 (𝑢 = 𝑣 ∨ ([𝑢](𝑅 ⋉ 𝑆) ∩ [𝑣](𝑅 ⋉ 𝑆)) = ∅))) | |
| 5 | 3, 4 | ax-mp 5 | . 2 ⊢ ( Disj ((𝑅 ⋉ 𝑆) ↾ 𝐴) ↔ ∀𝑢 ∈ 𝐴 ∀𝑣 ∈ 𝐴 (𝑢 = 𝑣 ∨ ([𝑢](𝑅 ⋉ 𝑆) ∩ [𝑣](𝑅 ⋉ 𝑆)) = ∅)) |
| 6 | 2, 5 | bitr3i 279 | 1 ⊢ ( Disj (𝑅 ⋉ (𝑆 ↾ 𝐴)) ↔ ∀𝑢 ∈ 𝐴 ∀𝑣 ∈ 𝐴 (𝑢 = 𝑣 ∨ ([𝑢](𝑅 ⋉ 𝑆) ∩ [𝑣](𝑅 ⋉ 𝑆)) = ∅)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∨ wo 854 = wceq 1548 ∀wral 3055 ∩ cin 3883 ∅c0 4263 ↾ cres 5622 Rel wrel 5625 [cec 8635 ⋉ cxrn 38554 Disj wdisjALTV 38599 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5220 ax-pr 5364 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ral 3056 df-rex 3066 df-rmo 3346 df-rab 3394 df-v 3435 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-nul 4264 df-if 4457 df-sn 4558 df-pr 4560 df-op 4564 df-br 5075 df-opab 5137 df-id 5515 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-ec 8639 df-xrn 38760 df-coss 38881 df-cnvrefrel 38987 df-funALTV 39147 df-disjALTV 39170 |
| This theorem is referenced by: disjsuc 39239 |
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