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| Mirrors > Home > MPE Home > Th. List > Mathboxes > prstcthin | Structured version Visualization version GIF version | ||
| Description: The preordered set is equipped with a thin category. (Contributed by Zhi Wang, 20-Sep-2024.) |
| Ref | Expression |
|---|---|
| prstcnid.c | ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) |
| prstcnid.k | ⊢ (𝜑 → 𝐾 ∈ Proset ) |
| Ref | Expression |
|---|---|
| prstcthin | ⊢ (𝜑 → 𝐶 ∈ ThinCat) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqidd 2737 | . . 3 ⊢ (𝜑 → (Base‘𝐶) = (Base‘𝐶)) | |
| 2 | prstcnid.c | . . . 4 ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) | |
| 3 | prstcnid.k | . . . 4 ⊢ (𝜑 → 𝐾 ∈ Proset ) | |
| 4 | eqidd 2737 | . . . 4 ⊢ (𝜑 → (le‘𝐶) = (le‘𝐶)) | |
| 5 | 2, 3, 4 | prstchomval 49825 | . . 3 ⊢ (𝜑 → ((le‘𝐶) × {1o}) = (Hom ‘𝐶)) |
| 6 | ovex 7391 | . . . . 5 ⊢ (𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) ∈ V | |
| 7 | 0ex 5252 | . . . . 5 ⊢ ∅ ∈ V | |
| 8 | ccoid 17336 | . . . . . 6 ⊢ comp = Slot (comp‘ndx) | |
| 9 | 8 | setsid 17136 | . . . . 5 ⊢ (((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) ∈ V ∧ ∅ ∈ V) → ∅ = (comp‘((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉))) |
| 10 | 6, 7, 9 | mp2an 692 | . . . 4 ⊢ ∅ = (comp‘((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉)) |
| 11 | 2, 3 | prstcval 49817 | . . . . 5 ⊢ (𝜑 → 𝐶 = ((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉)) |
| 12 | 11 | fveq2d 6838 | . . . 4 ⊢ (𝜑 → (comp‘𝐶) = (comp‘((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉))) |
| 13 | 10, 12 | eqtr4id 2790 | . . 3 ⊢ (𝜑 → ∅ = (comp‘𝐶)) |
| 14 | 2, 3 | prstcprs 49826 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Proset ) |
| 15 | 1, 5, 13, 4, 14 | prsthinc 49730 | . 2 ⊢ (𝜑 → (𝐶 ∈ ThinCat ∧ (Id‘𝐶) = (𝑦 ∈ (Base‘𝐶) ↦ ∅))) |
| 16 | 15 | simpld 494 | 1 ⊢ (𝜑 → 𝐶 ∈ ThinCat) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 Vcvv 3440 ∅c0 4285 {csn 4580 〈cop 4586 ↦ cmpt 5179 × cxp 5622 ‘cfv 6492 (class class class)co 7358 1oc1o 8390 sSet csts 17092 ndxcnx 17122 Basecbs 17138 lecple 17186 Hom chom 17190 compcco 17191 Idccid 17590 Proset cproset 18217 ThinCatcthinc 49683 ProsetToCatcprstc 49815 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-rep 5224 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3350 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-er 8635 df-en 8886 df-dom 8887 df-sdom 8888 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12148 df-2 12210 df-3 12211 df-4 12212 df-5 12213 df-6 12214 df-7 12215 df-8 12216 df-9 12217 df-n0 12404 df-z 12491 df-dec 12610 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17139 df-ple 17199 df-hom 17203 df-cco 17204 df-cat 17593 df-cid 17594 df-proset 18219 df-thinc 49684 df-prstc 49816 |
| This theorem is referenced by: prstchom2 49829 oduoppcciso 49832 postc 49835 discthin 49839 |
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