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| Mirrors > Home > MPE Home > Th. List > isposix | Structured version Visualization version GIF version | ||
| Description: Properties that determine a poset (explicit structure version). Note that the numeric indices of the structure components are not mentioned explicitly in either the theorem or its proof. (Contributed by NM, 9-Nov-2012.) (Proof shortened by AV, 30-Oct-2024.) |
| Ref | Expression |
|---|---|
| isposix.a | ⊢ 𝐵 ∈ V |
| isposix.b | ⊢ ≤ ∈ V |
| isposix.k | ⊢ 𝐾 = {〈(Base‘ndx), 𝐵〉, 〈(le‘ndx), ≤ 〉} |
| isposix.1 | ⊢ (𝑥 ∈ 𝐵 → 𝑥 ≤ 𝑥) |
| isposix.2 | ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → ((𝑥 ≤ 𝑦 ∧ 𝑦 ≤ 𝑥) → 𝑥 = 𝑦)) |
| isposix.3 | ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → ((𝑥 ≤ 𝑦 ∧ 𝑦 ≤ 𝑧) → 𝑥 ≤ 𝑧)) |
| Ref | Expression |
|---|---|
| isposix | ⊢ 𝐾 ∈ Poset |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isposix.k | . . 3 ⊢ 𝐾 = {〈(Base‘ndx), 𝐵〉, 〈(le‘ndx), ≤ 〉} | |
| 2 | prex 5395 | . . 3 ⊢ {〈(Base‘ndx), 𝐵〉, 〈(le‘ndx), ≤ 〉} ∈ V | |
| 3 | 1, 2 | eqeltri 2856 | . 2 ⊢ 𝐾 ∈ V |
| 4 | isposix.a | . . 3 ⊢ 𝐵 ∈ V | |
| 5 | basendxltplendx 17545 | . . . 4 ⊢ (Base‘ndx) < (le‘ndx) | |
| 6 | plendxnn 17544 | . . . 4 ⊢ (le‘ndx) ∈ ℕ | |
| 7 | 1, 5, 6 | 2strbas 17411 | . . 3 ⊢ (𝐵 ∈ V → 𝐵 = (Base‘𝐾)) |
| 8 | 4, 7 | ax-mp 5 | . 2 ⊢ 𝐵 = (Base‘𝐾) |
| 9 | isposix.b | . . 3 ⊢ ≤ ∈ V | |
| 10 | pleid 17543 | . . . 4 ⊢ le = Slot (le‘ndx) | |
| 11 | 1, 5, 6, 10 | 2strop 17412 | . . 3 ⊢ ( ≤ ∈ V → ≤ = (le‘𝐾)) |
| 12 | 9, 11 | ax-mp 5 | . 2 ⊢ ≤ = (le‘𝐾) |
| 13 | isposix.1 | . 2 ⊢ (𝑥 ∈ 𝐵 → 𝑥 ≤ 𝑥) | |
| 14 | isposix.2 | . 2 ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → ((𝑥 ≤ 𝑦 ∧ 𝑦 ≤ 𝑥) → 𝑥 = 𝑦)) | |
| 15 | isposix.3 | . 2 ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → ((𝑥 ≤ 𝑦 ∧ 𝑦 ≤ 𝑧) → 𝑥 ≤ 𝑧)) | |
| 16 | 3, 8, 12, 13, 14, 15 | isposi 18502 | 1 ⊢ 𝐾 ∈ Poset |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2144 Vcvv 3450 {cpr 4586 〈cop 4834 class class class wbr 5102 ‘cfv 6538 ndxcnx 17376 Basecbs 17392 lecple 17440 Posetcpo 18486 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11259 ax-resscn 11260 ax-1cn 11261 ax-icn 11262 ax-addcl 11263 ax-addrcl 11264 ax-mulcl 11265 ax-mulrcl 11266 ax-mulcom 11267 ax-addass 11268 ax-mulass 11269 ax-distr 11270 ax-i2m1 11271 ax-1ne0 11272 ax-1rid 11273 ax-rnegex 11274 ax-rrecex 11275 ax-cnre 11276 ax-pre-lttri 11277 ax-pre-lttrn 11278 ax-pre-ltadd 11279 ax-pre-mulgt0 11280 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8302 df-wrecs 8333 df-recs 8382 df-rdg 8421 df-1o 8479 df-er 8720 df-en 8977 df-dom 8978 df-sdom 8979 df-fin 8980 df-pnf 11348 df-mnf 11349 df-xr 11350 df-ltxr 11351 df-le 11352 df-sub 11546 df-neg 11547 df-nn 12339 df-2 12408 df-3 12409 df-4 12410 df-5 12411 df-6 12412 df-7 12413 df-8 12414 df-9 12415 df-n0 12610 df-z 12697 df-dec 12818 df-uz 12969 df-fz 13643 df-struct 17330 df-slot 17365 df-ndx 17377 df-base 17393 df-ple 17453 df-poset 18492 |
| This theorem is used by: (None) |
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