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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lanrcl5 | Structured version Visualization version GIF version | ||
| Description: The second component of a left Kan extension is a natural transformation. (Contributed by Zhi Wang, 4-Nov-2025.) |
| Ref | Expression |
|---|---|
| lanrcl2.l | ⊢ (𝜑 → 𝐿(𝐹(〈𝐶, 𝐷〉 Lan 𝐸)𝑋)𝐴) |
| lanrcl5.n | ⊢ 𝑁 = (𝐶 Nat 𝐸) |
| Ref | Expression |
|---|---|
| lanrcl5 | ⊢ (𝜑 → 𝐴 ∈ (𝑋𝑁(𝐿 ∘func 𝐹))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lanrcl2.l | . . . . 5 ⊢ (𝜑 → 𝐿(𝐹(〈𝐶, 𝐷〉 Lan 𝐸)𝑋)𝐴) | |
| 2 | eqid 2763 | . . . . . 6 ⊢ (𝐷 FuncCat 𝐸) = (𝐷 FuncCat 𝐸) | |
| 3 | eqid 2763 | . . . . . 6 ⊢ (𝐶 FuncCat 𝐸) = (𝐶 FuncCat 𝐸) | |
| 4 | eqid 2763 | . . . . . 6 ⊢ (〈𝐷, 𝐸〉 −∘F 𝐹) = (〈𝐷, 𝐸〉 −∘F 𝐹) | |
| 5 | 2, 3, 4 | islan2 50948 | . . . . 5 ⊢ (𝐿(𝐹(〈𝐶, 𝐷〉 Lan 𝐸)𝑋)𝐴 → 𝐿((〈𝐷, 𝐸〉 −∘F 𝐹)((𝐷 FuncCat 𝐸) UP (𝐶 FuncCat 𝐸))𝑋)𝐴) |
| 6 | 1, 5 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐿((〈𝐷, 𝐸〉 −∘F 𝐹)((𝐷 FuncCat 𝐸) UP (𝐶 FuncCat 𝐸))𝑋)𝐴) |
| 7 | 6 | up1st2nd 50440 | . . 3 ⊢ (𝜑 → 𝐿(〈(1st ‘(〈𝐷, 𝐸〉 −∘F 𝐹)), (2nd ‘(〈𝐷, 𝐸〉 −∘F 𝐹))〉((𝐷 FuncCat 𝐸) UP (𝐶 FuncCat 𝐸))𝑋)𝐴) |
| 8 | lanrcl5.n | . . . 4 ⊢ 𝑁 = (𝐶 Nat 𝐸) | |
| 9 | 3, 8 | fuchom 18151 | . . 3 ⊢ 𝑁 = (Hom ‘(𝐶 FuncCat 𝐸)) |
| 10 | 7, 9 | uprcl5 50447 | . 2 ⊢ (𝜑 → 𝐴 ∈ (𝑋𝑁((1st ‘(〈𝐷, 𝐸〉 −∘F 𝐹))‘𝐿))) |
| 11 | 1 | lanrcl4 50956 | . . . 4 ⊢ (𝜑 → 𝐿 ∈ (𝐷 Func 𝐸)) |
| 12 | eqidd 2764 | . . . 4 ⊢ (𝜑 → (1st ‘(〈𝐷, 𝐸〉 −∘F 𝐹)) = (1st ‘(〈𝐷, 𝐸〉 −∘F 𝐹))) | |
| 13 | 11, 12 | prcof1 50662 | . . 3 ⊢ (𝜑 → ((1st ‘(〈𝐷, 𝐸〉 −∘F 𝐹))‘𝐿) = (𝐿 ∘func 𝐹)) |
| 14 | 13 | oveq2d 7443 | . 2 ⊢ (𝜑 → (𝑋𝑁((1st ‘(〈𝐷, 𝐸〉 −∘F 𝐹))‘𝐿)) = (𝑋𝑁(𝐿 ∘func 𝐹))) |
| 15 | 10, 14 | eleqtrd 2865 | 1 ⊢ (𝜑 → 𝐴 ∈ (𝑋𝑁(𝐿 ∘func 𝐹))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2146 〈cop 4837 class class class wbr 5105 ‘cfv 6546 (class class class)co 7427 1st c1st 8006 2nd c2nd 8007 ∘func ccofu 18043 Nat cnat 18131 FuncCat cfuc 18132 UP cup 50428 −∘F cprcof 50647 Lan clan 50927 |
| 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 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5234 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-mulcom 11274 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 ax-pre-mulgt0 11287 |
| 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 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-pss 4016 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4838 df-uni 4870 df-iun 4955 df-br 5106 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5549 df-eprel 5554 df-po 5562 df-so 5563 df-fr 5607 df-we 5609 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6310 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-om 7885 df-1st 8008 df-2nd 8009 df-frecs 8310 df-wrecs 8341 df-recs 8390 df-rdg 8429 df-1o 8487 df-er 8728 df-ixp 8937 df-en 8985 df-dom 8986 df-sdom 8987 df-fin 8988 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-sub 11553 df-neg 11554 df-nn 12346 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 df-7 12420 df-8 12421 df-9 12422 df-n0 12617 df-z 12704 df-dec 12825 df-uz 12976 df-fz 13650 df-struct 17337 df-slot 17372 df-ndx 17384 df-base 17400 df-hom 17464 df-cco 17465 df-func 18045 df-cofu 18047 df-nat 18133 df-fuc 18134 df-up 50429 df-prcof 50648 df-lan 50929 |
| This theorem is used by: (None) |
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