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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 17920 | . 2 ⊢ Rel (𝐷 Func 𝐶) | |
| 2 | ovex 7445 | . . . 4 ⊢ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓) ∈ V | |
| 3 | lmdfval 50410 | . . . 4 ⊢ (𝐶 Limit 𝐷) = (𝑓 ∈ (𝐷 Func 𝐶) ↦ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓)) | |
| 4 | 2, 3 | dmmpti 6681 | . . 3 ⊢ dom (𝐶 Limit 𝐷) = (𝐷 Func 𝐶) |
| 5 | 4 | releqi 5766 | . 2 ⊢ (Rel dom (𝐶 Limit 𝐷) ↔ Rel (𝐷 Func 𝐶)) |
| 6 | 1, 5 | mpbir 234 | 1 ⊢ Rel dom (𝐶 Limit 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: dom cdm 5663 Rel wrel 5668 ‘cfv 6538 (class class class)co 7412 oppCatcoppc 17768 Func cfunc 17912 FuncCat cfuc 18003 Δfunccdiag 18269 oppFunc coppf 49883 UP cup 49934 Limit clmd 50404 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5239 ax-sep 5258 ax-nul 5270 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7415 df-oprab 7416 df-mpo 7417 df-1st 7987 df-2nd 7988 df-func 17916 df-lmd 50406 |
| This theorem is referenced by: (None) |
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