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| Mirrors > Home > MPE Home > Th. List > dfinito3 | Structured version Visualization version GIF version | ||
| Description: An alternate definition of df-inito 18168 depending on df-termo 18169, without dummy variables. (Contributed by Zhi Wang, 29-Aug-2024.) |
| Ref | Expression |
|---|---|
| dfinito3 | ⊢ InitO = (TermO ∘ (oppCat ↾ Cat)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvres 6909 | . . . 4 ⊢ (𝑐 ∈ Cat → ((oppCat ↾ Cat)‘𝑐) = (oppCat‘𝑐)) | |
| 2 | 1 | fveq2d 6894 | . . 3 ⊢ (𝑐 ∈ Cat → (TermO‘((oppCat ↾ Cat)‘𝑐)) = (TermO‘(oppCat‘𝑐))) |
| 3 | 2 | mpteq2ia 5199 | . 2 ⊢ (𝑐 ∈ Cat ↦ (TermO‘((oppCat ↾ Cat)‘𝑐))) = (𝑐 ∈ Cat ↦ (TermO‘(oppCat‘𝑐))) |
| 4 | termofn 18172 | . . . 4 ⊢ TermO Fn Cat | |
| 5 | dffn2 6716 | . . . 4 ⊢ (TermO Fn Cat ↔ TermO:Cat⟶V) | |
| 6 | 4, 5 | mpbi 233 | . . 3 ⊢ TermO:Cat⟶V |
| 7 | oppccatf 17911 | . . 3 ⊢ (oppCat ↾ Cat):Cat⟶Cat | |
| 8 | fcompt 7139 | . . 3 ⊢ ((TermO:Cat⟶V ∧ (oppCat ↾ Cat):Cat⟶Cat) → (TermO ∘ (oppCat ↾ Cat)) = (𝑐 ∈ Cat ↦ (TermO‘((oppCat ↾ Cat)‘𝑐)))) | |
| 9 | 6, 7, 8 | mp2an 705 | . 2 ⊢ (TermO ∘ (oppCat ↾ Cat)) = (𝑐 ∈ Cat ↦ (TermO‘((oppCat ↾ Cat)‘𝑐))) |
| 10 | dfinito2 18187 | . 2 ⊢ InitO = (𝑐 ∈ Cat ↦ (TermO‘(oppCat‘𝑐))) | |
| 11 | 3, 9, 10 | 3eqtr4ri 2794 | 1 ⊢ InitO = (TermO ∘ (oppCat ↾ Cat)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2144 Vcvv 3450 ↦ cmpt 5185 ↾ cres 5653 ∘ ccom 5655 Fn wfn 6538 ⟶wf 6539 ‘cfv 6543 Catccat 17847 oppCatcoppc 17894 InitOcinito 18165 TermOctermo 18166 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 ax-pre-mulgt0 11284 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-1st 8005 df-2nd 8006 df-tpos 8250 df-frecs 8306 df-wrecs 8337 df-recs 8386 df-rdg 8425 df-er 8724 df-en 8981 df-dom 8982 df-sdom 8983 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-sub 11550 df-neg 11551 df-nn 12343 df-2 12412 df-3 12413 df-4 12414 df-5 12415 df-6 12416 df-7 12417 df-8 12418 df-9 12419 df-n0 12614 df-z 12701 df-dec 12822 df-sets 17351 df-slot 17369 df-ndx 17381 df-base 17397 df-hom 17461 df-cco 17462 df-cat 17851 df-cid 17852 df-oppc 17895 df-inito 18168 df-termo 18169 |
| This theorem is used by: (None) |
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