| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > ipopos | Structured version Visualization version GIF version | ||
| Description: The inclusion poset on a family of sets is actually a poset. (Contributed by Stefan O'Rear, 30-Jan-2015.) |
| Ref | Expression |
|---|---|
| ipopos.i | ⊢ 𝐼 = (toInc‘𝐹) |
| Ref | Expression |
|---|---|
| ipopos | ⊢ 𝐼 ∈ Poset |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ipopos.i | . . . . 5 ⊢ 𝐼 = (toInc‘𝐹) | |
| 2 | 1 | fvexi 6848 | . . . 4 ⊢ 𝐼 ∈ V |
| 3 | 2 | a1i 11 | . . 3 ⊢ (𝐹 ∈ V → 𝐼 ∈ V) |
| 4 | 1 | ipobas 18488 | . . 3 ⊢ (𝐹 ∈ V → 𝐹 = (Base‘𝐼)) |
| 5 | eqidd 2738 | . . 3 ⊢ (𝐹 ∈ V → (le‘𝐼) = (le‘𝐼)) | |
| 6 | ssid 3945 | . . . 4 ⊢ 𝑎 ⊆ 𝑎 | |
| 7 | eqid 2737 | . . . . . 6 ⊢ (le‘𝐼) = (le‘𝐼) | |
| 8 | 1, 7 | ipole 18491 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑎 ∈ 𝐹) → (𝑎(le‘𝐼)𝑎 ↔ 𝑎 ⊆ 𝑎)) |
| 9 | 8 | 3anidm23 1424 | . . . 4 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹) → (𝑎(le‘𝐼)𝑎 ↔ 𝑎 ⊆ 𝑎)) |
| 10 | 6, 9 | mpbiri 258 | . . 3 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹) → 𝑎(le‘𝐼)𝑎) |
| 11 | 1, 7 | ipole 18491 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹) → (𝑎(le‘𝐼)𝑏 ↔ 𝑎 ⊆ 𝑏)) |
| 12 | 1, 7 | ipole 18491 | . . . . . 6 ⊢ ((𝐹 ∈ V ∧ 𝑏 ∈ 𝐹 ∧ 𝑎 ∈ 𝐹) → (𝑏(le‘𝐼)𝑎 ↔ 𝑏 ⊆ 𝑎)) |
| 13 | 12 | 3com23 1127 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹) → (𝑏(le‘𝐼)𝑎 ↔ 𝑏 ⊆ 𝑎)) |
| 14 | 11, 13 | anbi12d 633 | . . . 4 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹) → ((𝑎(le‘𝐼)𝑏 ∧ 𝑏(le‘𝐼)𝑎) ↔ (𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑎))) |
| 15 | simpl 482 | . . . . 5 ⊢ ((𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑎) → 𝑎 ⊆ 𝑏) | |
| 16 | simpr 484 | . . . . 5 ⊢ ((𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑎) → 𝑏 ⊆ 𝑎) | |
| 17 | 15, 16 | eqssd 3940 | . . . 4 ⊢ ((𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑎) → 𝑎 = 𝑏) |
| 18 | 14, 17 | biimtrdi 253 | . . 3 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹) → ((𝑎(le‘𝐼)𝑏 ∧ 𝑏(le‘𝐼)𝑎) → 𝑎 = 𝑏)) |
| 19 | sstr 3931 | . . . . 5 ⊢ ((𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑐) → 𝑎 ⊆ 𝑐) | |
| 20 | 19 | a1i 11 | . . . 4 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → ((𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑐) → 𝑎 ⊆ 𝑐)) |
| 21 | 11 | 3adant3r3 1186 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → (𝑎(le‘𝐼)𝑏 ↔ 𝑎 ⊆ 𝑏)) |
| 22 | 1, 7 | ipole 18491 | . . . . . 6 ⊢ ((𝐹 ∈ V ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹) → (𝑏(le‘𝐼)𝑐 ↔ 𝑏 ⊆ 𝑐)) |
| 23 | 22 | 3adant3r1 1184 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → (𝑏(le‘𝐼)𝑐 ↔ 𝑏 ⊆ 𝑐)) |
| 24 | 21, 23 | anbi12d 633 | . . . 4 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → ((𝑎(le‘𝐼)𝑏 ∧ 𝑏(le‘𝐼)𝑐) ↔ (𝑎 ⊆ 𝑏 ∧ 𝑏 ⊆ 𝑐))) |
| 25 | 1, 7 | ipole 18491 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹) → (𝑎(le‘𝐼)𝑐 ↔ 𝑎 ⊆ 𝑐)) |
| 26 | 25 | 3adant3r2 1185 | . . . 4 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → (𝑎(le‘𝐼)𝑐 ↔ 𝑎 ⊆ 𝑐)) |
| 27 | 20, 24, 26 | 3imtr4d 294 | . . 3 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → ((𝑎(le‘𝐼)𝑏 ∧ 𝑏(le‘𝐼)𝑐) → 𝑎(le‘𝐼)𝑐)) |
| 28 | 3, 4, 5, 10, 18, 27 | isposd 18279 | . 2 ⊢ (𝐹 ∈ V → 𝐼 ∈ Poset) |
| 29 | fvprc 6826 | . . . 4 ⊢ (¬ 𝐹 ∈ V → (toInc‘𝐹) = ∅) | |
| 30 | 1, 29 | eqtrid 2784 | . . 3 ⊢ (¬ 𝐹 ∈ V → 𝐼 = ∅) |
| 31 | 0pos 18278 | . . 3 ⊢ ∅ ∈ Poset | |
| 32 | 30, 31 | eqeltrdi 2845 | . 2 ⊢ (¬ 𝐹 ∈ V → 𝐼 ∈ Poset) |
| 33 | 28, 32 | pm2.61i 182 | 1 ⊢ 𝐼 ∈ Poset |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 Vcvv 3430 ⊆ wss 3890 ∅c0 4274 class class class wbr 5086 ‘cfv 6492 lecple 17218 Posetcpo 18264 toInccipo 18484 |
| 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-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 |
| 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-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-1o 8398 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-fin 8890 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-5 12238 df-6 12239 df-7 12240 df-8 12241 df-9 12242 df-n0 12429 df-z 12516 df-dec 12636 df-uz 12780 df-fz 13453 df-struct 17108 df-slot 17143 df-ndx 17155 df-base 17171 df-tset 17230 df-ple 17231 df-ocomp 17232 df-poset 18270 df-ipo 18485 |
| This theorem is referenced by: isipodrs 18494 mrelatglb 18517 mrelatglb0 18518 mrelatlub 18519 mreclatBAD 18520 pwrssmgc 33075 nsgmgc 33487 nsgqusf1o 33491 ipolubdm 49474 ipolub 49475 ipoglbdm 49477 ipoglb 49478 mreclat 49484 topclat 49485 toplatjoin 49489 toplatmeet 49490 |
| Copyright terms: Public domain | W3C validator |