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| Mirrors > Home > MPE Home > Th. List > Mathboxes > reldmlmd2 | Structured version Visualization version GIF version | ||
| Description: The domain of (𝐶 Limit 𝐷) is a relation. (Contributed by Zhi Wang, 14-Nov-2025.) |
| Ref | Expression |
|---|---|
| reldmlmd2 | ⊢ Rel dom (𝐶 Limit 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relfunc 17766 | . 2 ⊢ Rel (𝐷 Func 𝐶) | |
| 2 | ovex 7379 | . . . 4 ⊢ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓) ∈ V | |
| 3 | lmdfval 49680 | . . . 4 ⊢ (𝐶 Limit 𝐷) = (𝑓 ∈ (𝐷 Func 𝐶) ↦ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓)) | |
| 4 | 2, 3 | dmmpti 6625 | . . 3 ⊢ dom (𝐶 Limit 𝐷) = (𝐷 Func 𝐶) |
| 5 | 4 | releqi 5718 | . 2 ⊢ (Rel dom (𝐶 Limit 𝐷) ↔ Rel (𝐷 Func 𝐶)) |
| 6 | 1, 5 | mpbir 231 | 1 ⊢ Rel dom (𝐶 Limit 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: dom cdm 5616 Rel wrel 5621 ‘cfv 6481 (class class class)co 7346 oppCatcoppc 17614 Func cfunc 17758 FuncCat cfuc 17849 Δfunccdiag 18115 oppFunc coppf 49153 UP cup 49204 Limit clmd 49674 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5217 ax-sep 5234 ax-nul 5244 ax-pr 5370 ax-un 7668 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4476 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-iun 4943 df-br 5092 df-opab 5154 df-mpt 5173 df-id 5511 df-xp 5622 df-rel 5623 df-cnv 5624 df-co 5625 df-dm 5626 df-rn 5627 df-res 5628 df-ima 5629 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-ov 7349 df-oprab 7350 df-mpo 7351 df-1st 7921 df-2nd 7922 df-func 17762 df-lmd 49676 |
| This theorem is referenced by: (None) |
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