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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 6934 | . . . 4 ⊢ 𝐼 ∈ V |
3 | 2 | a1i 11 | . . 3 ⊢ (𝐹 ∈ V → 𝐼 ∈ V) |
4 | 1 | ipobas 18601 | . . 3 ⊢ (𝐹 ∈ V → 𝐹 = (Base‘𝐼)) |
5 | eqidd 2741 | . . 3 ⊢ (𝐹 ∈ V → (le‘𝐼) = (le‘𝐼)) | |
6 | ssid 4031 | . . . 4 ⊢ 𝑎 ⊆ 𝑎 | |
7 | eqid 2740 | . . . . . 6 ⊢ (le‘𝐼) = (le‘𝐼) | |
8 | 1, 7 | ipole 18604 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑎 ∈ 𝐹) → (𝑎(le‘𝐼)𝑎 ↔ 𝑎 ⊆ 𝑎)) |
9 | 8 | 3anidm23 1421 | . . . 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 18604 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹) → (𝑎(le‘𝐼)𝑏 ↔ 𝑎 ⊆ 𝑏)) |
12 | 1, 7 | ipole 18604 | . . . . . 6 ⊢ ((𝐹 ∈ V ∧ 𝑏 ∈ 𝐹 ∧ 𝑎 ∈ 𝐹) → (𝑏(le‘𝐼)𝑎 ↔ 𝑏 ⊆ 𝑎)) |
13 | 12 | 3com23 1126 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹) → (𝑏(le‘𝐼)𝑎 ↔ 𝑏 ⊆ 𝑎)) |
14 | 11, 13 | anbi12d 631 | . . . 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 4026 | . . . 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 4017 | . . . . 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 1184 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → (𝑎(le‘𝐼)𝑏 ↔ 𝑎 ⊆ 𝑏)) |
22 | 1, 7 | ipole 18604 | . . . . . 6 ⊢ ((𝐹 ∈ V ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹) → (𝑏(le‘𝐼)𝑐 ↔ 𝑏 ⊆ 𝑐)) |
23 | 22 | 3adant3r1 1182 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ (𝑎 ∈ 𝐹 ∧ 𝑏 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹)) → (𝑏(le‘𝐼)𝑐 ↔ 𝑏 ⊆ 𝑐)) |
24 | 21, 23 | anbi12d 631 | . . . 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 18604 | . . . . 5 ⊢ ((𝐹 ∈ V ∧ 𝑎 ∈ 𝐹 ∧ 𝑐 ∈ 𝐹) → (𝑎(le‘𝐼)𝑐 ↔ 𝑎 ⊆ 𝑐)) |
26 | 25 | 3adant3r2 1183 | . . . 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 18393 | . 2 ⊢ (𝐹 ∈ V → 𝐼 ∈ Poset) |
29 | fvprc 6912 | . . . 4 ⊢ (¬ 𝐹 ∈ V → (toInc‘𝐹) = ∅) | |
30 | 1, 29 | eqtrid 2792 | . . 3 ⊢ (¬ 𝐹 ∈ V → 𝐼 = ∅) |
31 | 0pos 18391 | . . 3 ⊢ ∅ ∈ Poset | |
32 | 30, 31 | eqeltrdi 2852 | . 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 1537 ∈ wcel 2108 Vcvv 3488 ⊆ wss 3976 ∅c0 4352 class class class wbr 5166 ‘cfv 6573 lecple 17318 Posetcpo 18377 toInccipo 18597 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-pred 6332 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-1st 8030 df-2nd 8031 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-1o 8522 df-er 8763 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-nn 12294 df-2 12356 df-3 12357 df-4 12358 df-5 12359 df-6 12360 df-7 12361 df-8 12362 df-9 12363 df-n0 12554 df-z 12640 df-dec 12759 df-uz 12904 df-fz 13568 df-struct 17194 df-slot 17229 df-ndx 17241 df-base 17259 df-tset 17330 df-ple 17331 df-ocomp 17332 df-poset 18383 df-ipo 18598 |
This theorem is referenced by: isipodrs 18607 mrelatglb 18630 mrelatglb0 18631 mrelatlub 18632 mreclatBAD 18633 pwrssmgc 32973 nsgmgc 33405 nsgqusf1o 33409 ipolubdm 48659 ipolub 48660 ipoglbdm 48662 ipoglb 48663 mreclat 48669 topclat 48670 toplatjoin 48674 toplatmeet 48675 |
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