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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 2738 | . . 3 ⊢ (𝜑 → (Base‘𝐶) = (Base‘𝐶)) | |
| 2 | prstcnid.c | . . . 4 ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) | |
| 3 | prstcnid.k | . . . 4 ⊢ (𝜑 → 𝐾 ∈ Proset ) | |
| 4 | eqidd 2738 | . . . 4 ⊢ (𝜑 → (le‘𝐶) = (le‘𝐶)) | |
| 5 | 2, 3, 4 | prstchomval 49947 | . . 3 ⊢ (𝜑 → ((le‘𝐶) × {1o}) = (Hom ‘𝐶)) |
| 6 | ovex 7403 | . . . . 5 ⊢ (𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) ∈ V | |
| 7 | 0ex 5256 | . . . . 5 ⊢ ∅ ∈ V | |
| 8 | ccoid 17348 | . . . . . 6 ⊢ comp = Slot (comp‘ndx) | |
| 9 | 8 | setsid 17148 | . . . . 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 693 | . . . 4 ⊢ ∅ = (comp‘((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉)) |
| 11 | 2, 3 | prstcval 49939 | . . . . 5 ⊢ (𝜑 → 𝐶 = ((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉)) |
| 12 | 11 | fveq2d 6848 | . . . 4 ⊢ (𝜑 → (comp‘𝐶) = (comp‘((𝐾 sSet 〈(Hom ‘ndx), ((le‘𝐾) × {1o})〉) sSet 〈(comp‘ndx), ∅〉))) |
| 13 | 10, 12 | eqtr4id 2791 | . . 3 ⊢ (𝜑 → ∅ = (comp‘𝐶)) |
| 14 | 2, 3 | prstcprs 49948 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Proset ) |
| 15 | 1, 5, 13, 4, 14 | prsthinc 49852 | . 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 1542 ∈ wcel 2114 Vcvv 3442 ∅c0 4287 {csn 4582 〈cop 4588 ↦ cmpt 5181 × cxp 5632 ‘cfv 6502 (class class class)co 7370 1oc1o 8402 sSet csts 17104 ndxcnx 17134 Basecbs 17150 lecple 17198 Hom chom 17202 compcco 17203 Idccid 17602 Proset cproset 18229 ThinCatcthinc 49805 ProsetToCatcprstc 49937 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5226 ax-sep 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 ax-cnex 11096 ax-resscn 11097 ax-1cn 11098 ax-icn 11099 ax-addcl 11100 ax-addrcl 11101 ax-mulcl 11102 ax-mulrcl 11103 ax-mulcom 11104 ax-addass 11105 ax-mulass 11106 ax-distr 11107 ax-i2m1 11108 ax-1ne0 11109 ax-1rid 11110 ax-rnegex 11111 ax-rrecex 11112 ax-cnre 11113 ax-pre-lttri 11114 ax-pre-lttrn 11115 ax-pre-ltadd 11116 ax-pre-mulgt0 11117 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5529 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-we 5589 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6269 df-ord 6330 df-on 6331 df-lim 6332 df-suc 6333 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-riota 7327 df-ov 7373 df-oprab 7374 df-mpo 7375 df-om 7821 df-2nd 7946 df-frecs 8235 df-wrecs 8266 df-recs 8315 df-rdg 8353 df-1o 8409 df-er 8647 df-en 8898 df-dom 8899 df-sdom 8900 df-pnf 11182 df-mnf 11183 df-xr 11184 df-ltxr 11185 df-le 11186 df-sub 11380 df-neg 11381 df-nn 12160 df-2 12222 df-3 12223 df-4 12224 df-5 12225 df-6 12226 df-7 12227 df-8 12228 df-9 12229 df-n0 12416 df-z 12503 df-dec 12622 df-sets 17105 df-slot 17123 df-ndx 17135 df-base 17151 df-ple 17211 df-hom 17215 df-cco 17216 df-cat 17605 df-cid 17606 df-proset 18231 df-thinc 49806 df-prstc 49938 |
| This theorem is referenced by: prstchom2 49951 oduoppcciso 49954 postc 49957 discthin 49961 |
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