| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| 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 17923 | . 2 ⊢ Rel (𝐷 Func 𝐶) | |
| 2 | ovex 7443 | . . . 4 ⊢ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓) ∈ V | |
| 3 | lmdfval 50455 | . . . 4 ⊢ (𝐶 Limit 𝐷) = (𝑓 ∈ (𝐷 Func 𝐶) ↦ (( oppFunc ‘(𝐶Δfunc𝐷))((oppCat‘𝐶) UP (oppCat‘(𝐷 FuncCat 𝐶)))𝑓)) | |
| 4 | 2, 3 | dmmpti 6679 | . . 3 ⊢ dom (𝐶 Limit 𝐷) = (𝐷 Func 𝐶) |
| 5 | 4 | releqi 5764 | . 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 5661 Rel wrel 5666 ‘cfv 6536 (class class class)co 7410 oppCatcoppc 17771 Func cfunc 17915 FuncCat cfuc 18006 Δfunccdiag 18272 oppFunc coppf 49928 UP cup 49979 Limit clmd 50449 |
| This proof depends on 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 5238 ax-sep 5257 ax-nul 5269 ax-pr 5404 ax-un 7732 |
| This proof 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 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 df-func 17919 df-lmd 50451 |
| This theorem is used by: (None) |
| Copyright terms: Public domain | W3C validator |