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| Mirrors > Home > MPE Home > Th. List > Mathboxes > prstchom2 | Structured version Visualization version GIF version | ||
| Description: Hom-sets of the
constructed category are dependent on the preorder.
Note that prstchom.x and prstchom.y are redundant here due to our definition of ProsetToCat ( see prstchom2ALT 49952). However, this should not be assumed as it is definition-dependent. Therefore, the two hypotheses are added for explicitness. (Contributed by Zhi Wang, 21-Sep-2024.) |
| Ref | Expression |
|---|---|
| prstcnid.c | ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) |
| prstcnid.k | ⊢ (𝜑 → 𝐾 ∈ Proset ) |
| prstchom.l | ⊢ (𝜑 → ≤ = (le‘𝐶)) |
| prstchom.e | ⊢ (𝜑 → 𝐻 = (Hom ‘𝐶)) |
| prstchom.x | ⊢ (𝜑 → 𝑋 ∈ (Base‘𝐶)) |
| prstchom.y | ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐶)) |
| Ref | Expression |
|---|---|
| prstchom2 | ⊢ (𝜑 → (𝑋 ≤ 𝑌 ↔ ∃!𝑓 𝑓 ∈ (𝑋𝐻𝑌))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prstcnid.c | . . 3 ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) | |
| 2 | prstcnid.k | . . 3 ⊢ (𝜑 → 𝐾 ∈ Proset ) | |
| 3 | prstchom.l | . . 3 ⊢ (𝜑 → ≤ = (le‘𝐶)) | |
| 4 | prstchom.e | . . 3 ⊢ (𝜑 → 𝐻 = (Hom ‘𝐶)) | |
| 5 | prstchom.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ (Base‘𝐶)) | |
| 6 | prstchom.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐶)) | |
| 7 | 1, 2, 3, 4, 5, 6 | prstchom 49950 | . 2 ⊢ (𝜑 → (𝑋 ≤ 𝑌 ↔ (𝑋𝐻𝑌) ≠ ∅)) |
| 8 | 1, 2 | prstcthin 49949 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ThinCat) |
| 9 | eqidd 2738 | . . 3 ⊢ (𝜑 → (Base‘𝐶) = (Base‘𝐶)) | |
| 10 | 8, 5, 6, 9, 4 | thincn0eu 49819 | . 2 ⊢ (𝜑 → ((𝑋𝐻𝑌) ≠ ∅ ↔ ∃!𝑓 𝑓 ∈ (𝑋𝐻𝑌))) |
| 11 | 7, 10 | bitrd 279 | 1 ⊢ (𝜑 → (𝑋 ≤ 𝑌 ↔ ∃!𝑓 𝑓 ∈ (𝑋𝐻𝑌))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 ∈ wcel 2114 ∃!weu 2569 ≠ wne 2933 ∅c0 4287 class class class wbr 5100 ‘cfv 6502 (class class class)co 7370 Basecbs 17150 lecple 17198 Hom chom 17202 Proset cproset 18229 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: (None) |
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