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| Mirrors > Home > MPE Home > Th. List > Mathboxes > coccl | Structured version Visualization version GIF version | ||
| Description: A natural transformation to a constant functor of an object maps to morphisms whose codomain is the object. Therefore, the range of the second component of a co-cone are morphisms with a common codomain. (Contributed by Zhi Wang, 13-Nov-2025.) |
| Ref | Expression |
|---|---|
| islmd.l | ⊢ 𝐿 = (𝐶Δfunc𝐷) |
| islmd.a | ⊢ 𝐴 = (Base‘𝐶) |
| islmd.n | ⊢ 𝑁 = (𝐷 Nat 𝐶) |
| islmd.b | ⊢ 𝐵 = (Base‘𝐷) |
| concl.k | ⊢ 𝐾 = ((1st ‘𝐿)‘𝑋) |
| concl.x | ⊢ (𝜑 → 𝑋 ∈ 𝐴) |
| concl.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| coccl.h | ⊢ 𝐻 = (Hom ‘𝐶) |
| coccl.r | ⊢ (𝜑 → 𝑅 ∈ (𝐹𝑁𝐾)) |
| Ref | Expression |
|---|---|
| coccl | ⊢ (𝜑 → (𝑅‘𝑌) ∈ (((1st ‘𝐹)‘𝑌)𝐻𝑋)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | islmd.n | . . 3 ⊢ 𝑁 = (𝐷 Nat 𝐶) | |
| 2 | coccl.r | . . . 4 ⊢ (𝜑 → 𝑅 ∈ (𝐹𝑁𝐾)) | |
| 3 | 1, 2 | nat1st2nd 18129 | . . 3 ⊢ (𝜑 → 𝑅 ∈ (〈(1st ‘𝐹), (2nd ‘𝐹)〉𝑁〈(1st ‘𝐾), (2nd ‘𝐾)〉)) |
| 4 | islmd.b | . . 3 ⊢ 𝐵 = (Base‘𝐷) | |
| 5 | coccl.h | . . 3 ⊢ 𝐻 = (Hom ‘𝐶) | |
| 6 | concl.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 7 | 1, 3, 4, 5, 6 | natcl 18131 | . 2 ⊢ (𝜑 → (𝑅‘𝑌) ∈ (((1st ‘𝐹)‘𝑌)𝐻((1st ‘𝐾)‘𝑌))) |
| 8 | islmd.l | . . . 4 ⊢ 𝐿 = (𝐶Δfunc𝐷) | |
| 9 | 1, 3 | natrcl2 50332 | . . . . 5 ⊢ (𝜑 → (1st ‘𝐹)(𝐷 Func 𝐶)(2nd ‘𝐹)) |
| 10 | 9 | funcrcl3 50188 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ Cat) |
| 11 | 9 | funcrcl2 50187 | . . . 4 ⊢ (𝜑 → 𝐷 ∈ Cat) |
| 12 | islmd.a | . . . 4 ⊢ 𝐴 = (Base‘𝐶) | |
| 13 | concl.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐴) | |
| 14 | concl.k | . . . 4 ⊢ 𝐾 = ((1st ‘𝐿)‘𝑋) | |
| 15 | 8, 10, 11, 12, 13, 14, 4, 6 | diag11 18417 | . . 3 ⊢ (𝜑 → ((1st ‘𝐾)‘𝑌) = 𝑋) |
| 16 | 15 | oveq2d 7436 | . 2 ⊢ (𝜑 → (((1st ‘𝐹)‘𝑌)𝐻((1st ‘𝐾)‘𝑌)) = (((1st ‘𝐹)‘𝑌)𝐻𝑋)) |
| 17 | 7, 16 | eleqtrd 2862 | 1 ⊢ (𝜑 → (𝑅‘𝑌) ∈ (((1st ‘𝐹)‘𝑌)𝐻𝑋)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 ‘cfv 6538 (class class class)co 7420 1st c1st 7999 2nd c2nd 8000 Basecbs 17387 Hom chom 17439 Nat cnat 18119 Δfunccdiag 18386 |
| 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 5326 ax-pr 5390 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| 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 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-tp 4588 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 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-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-1o 8476 df-er 8717 df-map 8849 df-ixp 8926 df-en 8974 df-dom 8975 df-sdom 8976 df-fin 8977 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-nn 12336 df-2 12405 df-3 12406 df-4 12407 df-5 12408 df-6 12409 df-7 12410 df-8 12411 df-9 12412 df-n0 12607 df-z 12694 df-dec 12815 df-uz 12966 df-fz 13640 df-struct 17325 df-slot 17360 df-ndx 17372 df-base 17388 df-hom 17452 df-cco 17453 df-cat 17842 df-cid 17843 df-func 18033 df-nat 18121 df-xpc 18346 df-1stf 18347 df-curf 18388 df-diag 18390 |
| This theorem is used by: coccom 50772 |
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