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| Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-endbase | Structured version Visualization version GIF version | ||
| Description: Base set of the monoid of endomorphisms on an object of a category. (Contributed by BJ, 5-Apr-2024.) (Proof modification is discouraged.) |
| Ref | Expression |
|---|---|
| bj-endval.c | ⊢ (𝜑 → 𝐶 ∈ Cat) |
| bj-endval.x | ⊢ (𝜑 → 𝑋 ∈ (Base‘𝐶)) |
| Ref | Expression |
|---|---|
| bj-endbase | ⊢ (𝜑 → (Base‘((End ‘𝐶)‘𝑋)) = (𝑋(Hom ‘𝐶)𝑋)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | baseid 17390 | . . 3 ⊢ Base = Slot (Base‘ndx) | |
| 2 | fvexd 6900 | . . 3 ⊢ (𝜑 → ((End ‘𝐶)‘𝑋) ∈ V) | |
| 3 | 1, 2 | strfvnd 17363 | . 2 ⊢ (𝜑 → (Base‘((End ‘𝐶)‘𝑋)) = (((End ‘𝐶)‘𝑋)‘(Base‘ndx))) |
| 4 | bj-endval.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
| 5 | bj-endval.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ (Base‘𝐶)) | |
| 6 | 4, 5 | bj-endval 38237 | . . 3 ⊢ (𝜑 → ((End ‘𝐶)‘𝑋) = {〈(Base‘ndx), (𝑋(Hom ‘𝐶)𝑋)〉, 〈(+g‘ndx), (〈𝑋, 𝑋〉(comp‘𝐶)𝑋)〉}) |
| 7 | 6 | fveq1d 6887 | . 2 ⊢ (𝜑 → (((End ‘𝐶)‘𝑋)‘(Base‘ndx)) = ({〈(Base‘ndx), (𝑋(Hom ‘𝐶)𝑋)〉, 〈(+g‘ndx), (〈𝑋, 𝑋〉(comp‘𝐶)𝑋)〉}‘(Base‘ndx))) |
| 8 | basendxnplusgndx 17458 | . . 3 ⊢ (Base‘ndx) ≠ (+g‘ndx) | |
| 9 | fvex 6898 | . . . 4 ⊢ (Base‘ndx) ∈ V | |
| 10 | ovex 7453 | . . . 4 ⊢ (𝑋(Hom ‘𝐶)𝑋) ∈ V | |
| 11 | 9, 10 | fvpr1 7197 | . . 3 ⊢ ((Base‘ndx) ≠ (+g‘ndx) → ({〈(Base‘ndx), (𝑋(Hom ‘𝐶)𝑋)〉, 〈(+g‘ndx), (〈𝑋, 𝑋〉(comp‘𝐶)𝑋)〉}‘(Base‘ndx)) = (𝑋(Hom ‘𝐶)𝑋)) |
| 12 | 8, 11 | mp1i 14 | . 2 ⊢ (𝜑 → ({〈(Base‘ndx), (𝑋(Hom ‘𝐶)𝑋)〉, 〈(+g‘ndx), (〈𝑋, 𝑋〉(comp‘𝐶)𝑋)〉}‘(Base‘ndx)) = (𝑋(Hom ‘𝐶)𝑋)) |
| 13 | 3, 7, 12 | 3eqtrd 2799 | 1 ⊢ (𝜑 → (Base‘((End ‘𝐶)‘𝑋)) = (𝑋(Hom ‘𝐶)𝑋)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 ≠ wne 2955 Vcvv 3450 {cpr 4585 〈cop 4589 ‘cfv 6538 (class class class)co 7420 ndxcnx 17371 Basecbs 17387 +gcplusg 17428 Hom chom 17439 compcco 17440 Catccat 17838 End cend 38235 |
| 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-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-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-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 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-slot 17360 df-ndx 17372 df-base 17388 df-plusg 17441 df-bj-end 38236 |
| This theorem is used by: bj-endmnd 38240 |
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