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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 18069 | . 2 ⊢ Rel (𝐷 Func 𝐶) | |
| 2 | ovex 7479 | . . . 4 ⊢ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓) ∈ V | |
| 3 | lmdfval 51047 | . . . 4 ⊢ (𝐶 Limit 𝐷) = (𝑓 ∈ (𝐷 Func 𝐶) ↦ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓)) | |
| 4 | 2, 3 | dmmpti 6708 | . . 3 ⊢ dom (𝐶 Limit 𝐷) = (𝐷 Func 𝐶) |
| 5 | 4 | releqi 5760 | . 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 |
| This proof depends on syntax axioms: dom cdm 5656 Rel wrel 5661 ‘cfv 6561 (class class class)co 7446 oppCatcoppc 17917 Func cfunc 18061 FuncCat cfuc 18152 Δfunccdiag 18418 oppFunc coppf 50453 UP cup 50504 Limit clmd 51041 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5236 ax-sep 5253 ax-nul 5264 ax-pr 5396 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5172 df-mpt 5191 df-id 5551 df-xp 5662 df-rel 5663 df-cnv 5664 df-co 5665 df-dm 5666 df-rn 5667 df-res 5668 df-ima 5669 df-iota 6515 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-ov 7449 df-oprab 7450 df-mpo 7451 df-func 18065 df-lmd 51043 |
| This theorem is used by: (None) |
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