| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > oppcup3 | Structured version Visualization version GIF version | ||
| Description: The universal property for the universal pair 〈𝑋, 𝑀〉 from a functor to an object, expressed explicitly. (Contributed by Zhi Wang, 4-Nov-2025.) |
| Ref | Expression |
|---|---|
| oppcup3.b | ⊢ 𝐵 = (Base‘𝐷) |
| oppcup3.h | ⊢ 𝐻 = (Hom ‘𝐷) |
| oppcup3.j | ⊢ 𝐽 = (Hom ‘𝐸) |
| oppcup3.xb | ⊢ ∙ = (comp‘𝐸) |
| oppcup3.o | ⊢ 𝑂 = (oppCat‘𝐷) |
| oppcup3.p | ⊢ 𝑃 = (oppCat‘𝐸) |
| oppcup3.x | ⊢ (𝜑 → 𝑋(〈𝐹, 𝑇〉(𝑂 UP 𝑃)𝑊)𝑀) |
| oppcup3.g | ⊢ (𝜑 → tpos 𝑇 = 𝐺) |
| oppcup3.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| oppcup3.n | ⊢ (𝜑 → 𝑁 ∈ ((𝐹‘𝑌)𝐽𝑊)) |
| Ref | Expression |
|---|---|
| oppcup3 | ⊢ (𝜑 → ∃!𝑘 ∈ (𝑌𝐻𝑋)𝑁 = (𝑀(〈(𝐹‘𝑌), (𝐹‘𝑋)〉 ∙ 𝑊)((𝑌𝐺𝑋)‘𝑘))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oppcup3.b | . . 3 ⊢ 𝐵 = (Base‘𝐷) | |
| 2 | oppcup3.h | . . 3 ⊢ 𝐻 = (Hom ‘𝐷) | |
| 3 | oppcup3.j | . . 3 ⊢ 𝐽 = (Hom ‘𝐸) | |
| 4 | oppcup3.xb | . . 3 ⊢ ∙ = (comp‘𝐸) | |
| 5 | oppcup3.o | . . 3 ⊢ 𝑂 = (oppCat‘𝐷) | |
| 6 | oppcup3.p | . . 3 ⊢ 𝑃 = (oppCat‘𝐸) | |
| 7 | oppcup3.x | . . . 4 ⊢ (𝜑 → 𝑋(〈𝐹, 𝑇〉(𝑂 UP 𝑃)𝑊)𝑀) | |
| 8 | oppcup3.y | . . . . . 6 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 9 | 8, 1 | eleqtrdi 2870 | . . . . 5 ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐷)) |
| 10 | 9 | elfvexd 6915 | . . . 4 ⊢ (𝜑 → 𝐷 ∈ V) |
| 11 | oppcup3.n | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ((𝐹‘𝑌)𝐽𝑊)) | |
| 12 | 11 | ne0d 4288 | . . . . 5 ⊢ (𝜑 → ((𝐹‘𝑌)𝐽𝑊) ≠ ∅) |
| 13 | fvprc 6871 | . . . . . . . . 9 ⊢ (¬ 𝐸 ∈ V → (Hom ‘𝐸) = ∅) | |
| 14 | 3, 13 | eqtrid 2807 | . . . . . . . 8 ⊢ (¬ 𝐸 ∈ V → 𝐽 = ∅) |
| 15 | 14 | oveqd 7431 | . . . . . . 7 ⊢ (¬ 𝐸 ∈ V → ((𝐹‘𝑌)𝐽𝑊) = ((𝐹‘𝑌)∅𝑊)) |
| 16 | 0ov 7451 | . . . . . . 7 ⊢ ((𝐹‘𝑌)∅𝑊) = ∅ | |
| 17 | 15, 16 | eqtrdi 2811 | . . . . . 6 ⊢ (¬ 𝐸 ∈ V → ((𝐹‘𝑌)𝐽𝑊) = ∅) |
| 18 | 17 | necon1ai 2982 | . . . . 5 ⊢ (((𝐹‘𝑌)𝐽𝑊) ≠ ∅ → 𝐸 ∈ V) |
| 19 | 12, 18 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐸 ∈ V) |
| 20 | oppcup3.g | . . . 4 ⊢ (𝜑 → tpos 𝑇 = 𝐺) | |
| 21 | 7, 6, 5, 10, 19, 20 | oppcuprcl2 50131 | . . 3 ⊢ (𝜑 → 𝐹(𝐷 Func 𝐸)𝐺) |
| 22 | 7, 20 | uptpos 50127 | . . 3 ⊢ (𝜑 → 𝑋(〈𝐹, tpos 𝐺〉(𝑂 UP 𝑃)𝑊)𝑀) |
| 23 | 1, 2, 3, 4, 5, 6, 21, 22 | oppcup2 50137 | . 2 ⊢ (𝜑 → ∀𝑦 ∈ 𝐵 ∀𝑔 ∈ ((𝐹‘𝑦)𝐽𝑊)∃!𝑘 ∈ (𝑦𝐻𝑋)𝑔 = (𝑀(〈(𝐹‘𝑦), (𝐹‘𝑋)〉 ∙ 𝑊)((𝑦𝐺𝑋)‘𝑘))) |
| 24 | 23, 8, 11 | oppcup3lem 50135 | 1 ⊢ (𝜑 → ∃!𝑘 ∈ (𝑌𝐻𝑋)𝑁 = (𝑀(〈(𝐹‘𝑌), (𝐹‘𝑋)〉 ∙ 𝑊)((𝑌𝐺𝑋)‘𝑘))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 ∃!wreu 3363 Vcvv 3450 ∅c0 4279 〈cop 4590 class class class wbr 5103 ‘cfv 6533 (class class class)co 7414 tpos ctpos 8224 Basecbs 17304 Hom chom 17356 compcco 17357 oppCatcoppc 17802 UP cup 50102 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 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 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7864 df-1st 7987 df-2nd 7988 df-tpos 8225 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-er 8699 df-map 8831 df-ixp 8908 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-7 12335 df-8 12336 df-9 12337 df-n0 12532 df-z 12619 df-dec 12740 df-sets 17259 df-slot 17277 df-ndx 17289 df-base 17305 df-hom 17369 df-cco 17370 df-cat 17759 df-cid 17760 df-homf 17761 df-comf 17762 df-oppc 17803 df-func 17950 df-up 50103 |
| This theorem is used by: (None) |
| Copyright terms: Public domain | W3C validator |