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Mirrors > Home > MPE Home > Th. List > Mathboxes > postcposALT | Structured version Visualization version GIF version |
Description: Alternate proof for postcpos 46361. (Contributed by Zhi Wang, 25-Sep-2024.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
postc.c | ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) |
postc.k | ⊢ (𝜑 → 𝐾 ∈ Proset ) |
Ref | Expression |
---|---|
postcposALT | ⊢ (𝜑 → (𝐾 ∈ Poset ↔ 𝐶 ∈ Poset)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | postc.c | . . . 4 ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾)) | |
2 | postc.k | . . . 4 ⊢ (𝜑 → 𝐾 ∈ Proset ) | |
3 | eqidd 2739 | . . . 4 ⊢ (𝜑 → (Base‘𝐾) = (Base‘𝐾)) | |
4 | 1, 2, 3 | prstcbas 46348 | . . 3 ⊢ (𝜑 → (Base‘𝐾) = (Base‘𝐶)) |
5 | eqidd 2739 | . . . . . . 7 ⊢ (𝜑 → (le‘𝐾) = (le‘𝐾)) | |
6 | 1, 2, 5 | prstcle 46351 | . . . . . 6 ⊢ (𝜑 → (𝑥(le‘𝐾)𝑦 ↔ 𝑥(le‘𝐶)𝑦)) |
7 | 1, 2, 5 | prstcle 46351 | . . . . . 6 ⊢ (𝜑 → (𝑦(le‘𝐾)𝑥 ↔ 𝑦(le‘𝐶)𝑥)) |
8 | 6, 7 | anbi12d 631 | . . . . 5 ⊢ (𝜑 → ((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) ↔ (𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥))) |
9 | 8 | imbi1d 342 | . . . 4 ⊢ (𝜑 → (((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦) ↔ ((𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥) → 𝑥 = 𝑦))) |
10 | 4, 9 | raleqbidvv 3338 | . . 3 ⊢ (𝜑 → (∀𝑦 ∈ (Base‘𝐾)((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦) ↔ ∀𝑦 ∈ (Base‘𝐶)((𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥) → 𝑥 = 𝑦))) |
11 | 4, 10 | raleqbidvv 3338 | . 2 ⊢ (𝜑 → (∀𝑥 ∈ (Base‘𝐾)∀𝑦 ∈ (Base‘𝐾)((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦) ↔ ∀𝑥 ∈ (Base‘𝐶)∀𝑦 ∈ (Base‘𝐶)((𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥) → 𝑥 = 𝑦))) |
12 | eqid 2738 | . . . . 5 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
13 | eqid 2738 | . . . . 5 ⊢ (le‘𝐾) = (le‘𝐾) | |
14 | 12, 13 | ispos2 18033 | . . . 4 ⊢ (𝐾 ∈ Poset ↔ (𝐾 ∈ Proset ∧ ∀𝑥 ∈ (Base‘𝐾)∀𝑦 ∈ (Base‘𝐾)((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦))) |
15 | 14 | baib 536 | . . 3 ⊢ (𝐾 ∈ Proset → (𝐾 ∈ Poset ↔ ∀𝑥 ∈ (Base‘𝐾)∀𝑦 ∈ (Base‘𝐾)((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦))) |
16 | 2, 15 | syl 17 | . 2 ⊢ (𝜑 → (𝐾 ∈ Poset ↔ ∀𝑥 ∈ (Base‘𝐾)∀𝑦 ∈ (Base‘𝐾)((𝑥(le‘𝐾)𝑦 ∧ 𝑦(le‘𝐾)𝑥) → 𝑥 = 𝑦))) |
17 | 1, 2 | prstcprs 46356 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Proset ) |
18 | eqid 2738 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
19 | eqid 2738 | . . . . 5 ⊢ (le‘𝐶) = (le‘𝐶) | |
20 | 18, 19 | ispos2 18033 | . . . 4 ⊢ (𝐶 ∈ Poset ↔ (𝐶 ∈ Proset ∧ ∀𝑥 ∈ (Base‘𝐶)∀𝑦 ∈ (Base‘𝐶)((𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥) → 𝑥 = 𝑦))) |
21 | 20 | baib 536 | . . 3 ⊢ (𝐶 ∈ Proset → (𝐶 ∈ Poset ↔ ∀𝑥 ∈ (Base‘𝐶)∀𝑦 ∈ (Base‘𝐶)((𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥) → 𝑥 = 𝑦))) |
22 | 17, 21 | syl 17 | . 2 ⊢ (𝜑 → (𝐶 ∈ Poset ↔ ∀𝑥 ∈ (Base‘𝐶)∀𝑦 ∈ (Base‘𝐶)((𝑥(le‘𝐶)𝑦 ∧ 𝑦(le‘𝐶)𝑥) → 𝑥 = 𝑦))) |
23 | 11, 16, 22 | 3bitr4d 311 | 1 ⊢ (𝜑 → (𝐾 ∈ Poset ↔ 𝐶 ∈ Poset)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ∀wral 3064 class class class wbr 5074 ‘cfv 6433 Basecbs 16912 lecple 16969 Proset cproset 18011 Posetcpo 18025 ProsetToCatcprstc 46343 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ple 16982 df-hom 16986 df-cco 16987 df-proset 18013 df-poset 18031 df-prstc 46344 |
This theorem is referenced by: (None) |
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