| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > uobeq2 | Structured version Visualization version GIF version | ||
| Description: If a full functor (in fact, a full embedding) is a section, then the sets of universal objects are equal. (Contributed by Zhi Wang, 17-Nov-2025.) |
| Ref | Expression |
|---|---|
| uobeq2.b | ⊢ 𝐵 = (Base‘𝐷) |
| uobeq2.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| uobeq2.f | ⊢ (𝜑 → 𝐹 ∈ (𝐶 Func 𝐷)) |
| uobeq2.g | ⊢ (𝜑 → (𝐾 ∘func 𝐹) = 𝐺) |
| uobeq2.y | ⊢ (𝜑 → ((1st ‘𝐾)‘𝑋) = 𝑌) |
| uobeq2.q | ⊢ 𝑄 = (CatCat‘𝑈) |
| uobeq2.s | ⊢ 𝑆 = (Sect‘𝑄) |
| uobeq2.k | ⊢ (𝜑 → 𝐾 ∈ (𝐷 Full 𝐸)) |
| uobeq2.1 | ⊢ (𝜑 → 𝐾 ∈ dom (𝐷𝑆𝐸)) |
| Ref | Expression |
|---|---|
| uobeq2 | ⊢ (𝜑 → dom (𝐹(𝐶 UP 𝐷)𝑋) = dom (𝐺(𝐶 UP 𝐸)𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uobeq2.1 | . . 3 ⊢ (𝜑 → 𝐾 ∈ dom (𝐷𝑆𝐸)) | |
| 2 | eldmg 5872 | . . . 4 ⊢ (𝐾 ∈ dom (𝐷𝑆𝐸) → (𝐾 ∈ dom (𝐷𝑆𝐸) ↔ ∃𝑙 𝐾(𝐷𝑆𝐸)𝑙)) | |
| 3 | 2 | ibi 269 | . . 3 ⊢ (𝐾 ∈ dom (𝐷𝑆𝐸) → ∃𝑙 𝐾(𝐷𝑆𝐸)𝑙) |
| 4 | 1, 3 | syl 17 | . 2 ⊢ (𝜑 → ∃𝑙 𝐾(𝐷𝑆𝐸)𝑙) |
| 5 | uobeq2.b | . . 3 ⊢ 𝐵 = (Base‘𝐷) | |
| 6 | uobeq2.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
| 7 | 6 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → 𝑋 ∈ 𝐵) |
| 8 | uobeq2.f | . . . 4 ⊢ (𝜑 → 𝐹 ∈ (𝐶 Func 𝐷)) | |
| 9 | 8 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → 𝐹 ∈ (𝐶 Func 𝐷)) |
| 10 | uobeq2.g | . . . 4 ⊢ (𝜑 → (𝐾 ∘func 𝐹) = 𝐺) | |
| 11 | 10 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → (𝐾 ∘func 𝐹) = 𝐺) |
| 12 | uobeq2.y | . . . 4 ⊢ (𝜑 → ((1st ‘𝐾)‘𝑋) = 𝑌) | |
| 13 | 12 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → ((1st ‘𝐾)‘𝑋) = 𝑌) |
| 14 | eqid 2761 | . . 3 ⊢ (idfunc‘𝐷) = (idfunc‘𝐷) | |
| 15 | uobeq2.k | . . . 4 ⊢ (𝜑 → 𝐾 ∈ (𝐷 Full 𝐸)) | |
| 16 | 15 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → 𝐾 ∈ (𝐷 Full 𝐸)) |
| 17 | uobeq2.q | . . . . . 6 ⊢ 𝑄 = (CatCat‘𝑈) | |
| 18 | eqid 2761 | . . . . . 6 ⊢ (Hom ‘𝑄) = (Hom ‘𝑄) | |
| 19 | uobeq2.s | . . . . . 6 ⊢ 𝑆 = (Sect‘𝑄) | |
| 20 | 17, 18, 14, 19 | catcsect 49983 | . . . . 5 ⊢ (𝐾(𝐷𝑆𝐸)𝑙 ↔ ((𝐾 ∈ (𝐷(Hom ‘𝑄)𝐸) ∧ 𝑙 ∈ (𝐸(Hom ‘𝑄)𝐷)) ∧ (𝑙 ∘func 𝐾) = (idfunc‘𝐷))) |
| 21 | 20 | simprbi 501 | . . . 4 ⊢ (𝐾(𝐷𝑆𝐸)𝑙 → (𝑙 ∘func 𝐾) = (idfunc‘𝐷)) |
| 22 | 21 | adantl 485 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → (𝑙 ∘func 𝐾) = (idfunc‘𝐷)) |
| 23 | 20 | simplbi 500 | . . . . . 6 ⊢ (𝐾(𝐷𝑆𝐸)𝑙 → (𝐾 ∈ (𝐷(Hom ‘𝑄)𝐸) ∧ 𝑙 ∈ (𝐸(Hom ‘𝑄)𝐷))) |
| 24 | 23 | simprd 499 | . . . . 5 ⊢ (𝐾(𝐷𝑆𝐸)𝑙 → 𝑙 ∈ (𝐸(Hom ‘𝑄)𝐷)) |
| 25 | 17, 18, 24 | elcatchom 49982 | . . . 4 ⊢ (𝐾(𝐷𝑆𝐸)𝑙 → 𝑙 ∈ (𝐸 Func 𝐷)) |
| 26 | 25 | adantl 485 | . . 3 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → 𝑙 ∈ (𝐸 Func 𝐷)) |
| 27 | 5, 7, 9, 11, 13, 14, 16, 22, 26 | uobeq 49805 | . 2 ⊢ ((𝜑 ∧ 𝐾(𝐷𝑆𝐸)𝑙) → dom (𝐹(𝐶 UP 𝐷)𝑋) = dom (𝐺(𝐶 UP 𝐸)𝑌)) |
| 28 | 4, 27 | exlimddv 1954 | 1 ⊢ (𝜑 → dom (𝐹(𝐶 UP 𝐷)𝑋) = dom (𝐺(𝐶 UP 𝐸)𝑌)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1559 ∃wex 1798 ∈ wcel 2141 class class class wbr 5099 dom cdm 5645 ‘cfv 6517 (class class class)co 7392 1st c1st 7964 Basecbs 17228 Hom chom 17280 Sectcsect 17760 Func cfunc 17870 idfunccidfu 17871 ∘func ccofu 17872 Full cful 17920 CatCatccatc 18114 UP cup 49758 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-cnex 11126 ax-resscn 11127 ax-1cn 11128 ax-icn 11129 ax-addcl 11130 ax-addrcl 11131 ax-mulcl 11132 ax-mulrcl 11133 ax-mulcom 11134 ax-addass 11135 ax-mulass 11136 ax-distr 11137 ax-i2m1 11138 ax-1ne0 11139 ax-1rid 11140 ax-rnegex 11141 ax-rrecex 11142 ax-cnre 11143 ax-pre-lttri 11144 ax-pre-lttrn 11145 ax-pre-ltadd 11146 ax-pre-mulgt0 11147 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-uni 4865 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-pred 6284 df-ord 6345 df-on 6346 df-lim 6347 df-suc 6348 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-riota 7349 df-ov 7395 df-oprab 7396 df-mpo 7397 df-om 7843 df-1st 7966 df-2nd 7967 df-frecs 8257 df-wrecs 8288 df-recs 8337 df-rdg 8376 df-1o 8432 df-er 8673 df-map 8805 df-ixp 8876 df-en 8924 df-dom 8925 df-sdom 8926 df-fin 8927 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 df-sub 11413 df-neg 11414 df-nn 12208 df-2 12277 df-3 12278 df-4 12279 df-5 12280 df-6 12281 df-7 12282 df-8 12283 df-9 12284 df-n0 12479 df-z 12566 df-dec 12686 df-uz 12837 df-fz 13510 df-struct 17166 df-slot 17201 df-ndx 17213 df-base 17229 df-hom 17293 df-cco 17294 df-cat 17683 df-cid 17684 df-sect 17763 df-func 17874 df-idfu 17875 df-cofu 17876 df-full 17922 df-fth 17923 df-catc 18115 df-up 49759 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |