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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 17276 | . . 3 ⊢ Base = Slot (Base‘ndx) | |
| 2 | fvexd 6896 | . . 3 ⊢ (𝜑 → ((End ‘𝐶)‘𝑋) ∈ V) | |
| 3 | 1, 2 | strfvnd 17249 | . 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 37987 | . . 3 ⊢ (𝜑 → ((End ‘𝐶)‘𝑋) = {〈(Base‘ndx), (𝑋(Hom ‘𝐶)𝑋)〉, 〈(+g‘ndx), (〈𝑋, 𝑋〉(comp‘𝐶)𝑋)〉}) |
| 7 | 6 | fveq1d 6883 | . 2 ⊢ (𝜑 → (((End ‘𝐶)‘𝑋)‘(Base‘ndx)) = ({〈(Base‘ndx), (𝑋(Hom ‘𝐶)𝑋)〉, 〈(+g‘ndx), (〈𝑋, 𝑋〉(comp‘𝐶)𝑋)〉}‘(Base‘ndx))) |
| 8 | basendxnplusgndx 17344 | . . 3 ⊢ (Base‘ndx) ≠ (+g‘ndx) | |
| 9 | fvex 6894 | . . . 4 ⊢ (Base‘ndx) ∈ V | |
| 10 | ovex 7443 | . . . 4 ⊢ (𝑋(Hom ‘𝐶)𝑋) ∈ V | |
| 11 | 9, 10 | fvpr1 7190 | . . 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 2802 | 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 1570 ∈ wcel 2143 ≠ wne 2958 Vcvv 3455 {cpr 4591 〈cop 4595 ‘cfv 6536 (class class class)co 7410 ndxcnx 17257 Basecbs 17273 +gcplusg 17314 Hom chom 17325 compcco 17326 Catccat 17724 End cend 37985 |
| 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-pow 5336 ax-pr 5404 ax-un 7732 ax-cnex 11160 ax-resscn 11161 ax-1cn 11162 ax-icn 11163 ax-addcl 11164 ax-addrcl 11165 ax-mulcl 11166 ax-mulrcl 11167 ax-mulcom 11168 ax-addass 11169 ax-mulass 11170 ax-distr 11171 ax-i2m1 11172 ax-1ne0 11173 ax-1rid 11174 ax-rnegex 11175 ax-rrecex 11176 ax-cnre 11177 ax-pre-lttri 11178 ax-pre-lttrn 11179 ax-pre-ltadd 11180 ax-pre-mulgt0 11181 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 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-nel 3065 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-pss 3925 df-nul 4287 df-if 4488 df-pw 4564 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-tr 5219 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-we 5616 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-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 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-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7859 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-er 8690 df-en 8940 df-dom 8941 df-sdom 8942 df-pnf 11249 df-mnf 11250 df-xr 11251 df-ltxr 11252 df-le 11253 df-sub 11447 df-neg 11448 df-nn 12238 df-2 12307 df-slot 17246 df-ndx 17258 df-base 17274 df-plusg 17327 df-bj-end 37986 |
| This theorem is used by: bj-endmnd 37990 |
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