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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 2825 | . 2 ⊢ 𝐾 ∈ V |
| 4 | isposix.a | . . 3 ⊢ 𝐵 ∈ V | |
| 5 | basendxltplendx 17339 | . . . 4 ⊢ (Base‘ndx) < (le‘ndx) | |
| 6 | plendxnn 17338 | . . . 4 ⊢ (le‘ndx) ∈ ℕ | |
| 7 | 1, 5, 6 | 2strbas 17205 | . . 3 ⊢ (𝐵 ∈ V → 𝐵 = (Base‘𝐾)) |
| 8 | 4, 7 | ax-mp 5 | . 2 ⊢ 𝐵 = (Base‘𝐾) |
| 9 | isposix.b | . . 3 ⊢ ≤ ∈ V | |
| 10 | pleid 17337 | . . . 4 ⊢ le = Slot (le‘ndx) | |
| 11 | 1, 5, 6, 10 | 2strop 17206 | . . 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 18291 | 1 ⊢ 𝐾 ∈ Poset |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 Vcvv 3450 {cpr 4594 〈cop 4598 class class class wbr 5110 ‘cfv 6514 ndxcnx 17170 Basecbs 17186 lecple 17234 Posetcpo 18275 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-pss 3937 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5111 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5536 df-eprel 5541 df-po 5549 df-so 5550 df-fr 5594 df-we 5596 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7846 df-1st 7971 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8381 df-1o 8437 df-er 8674 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-nn 12194 df-2 12256 df-3 12257 df-4 12258 df-5 12259 df-6 12260 df-7 12261 df-8 12262 df-9 12263 df-n0 12450 df-z 12537 df-dec 12657 df-uz 12801 df-fz 13476 df-struct 17124 df-slot 17159 df-ndx 17171 df-base 17187 df-ple 17247 df-poset 18281 |
| This theorem is referenced by: (None) |
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