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Mirrors > Home > HSE Home > Th. List > ococss | Structured version Visualization version GIF version |
Description: Inclusion in complement of complement. Part of Proposition 1 of [Kalmbach] p. 65. (Contributed by NM, 9-Aug-2000.) (New usage is discouraged.) |
Ref | Expression |
---|---|
ococss | ⊢ (𝐴 ⊆ ℋ → 𝐴 ⊆ (⊥‘(⊥‘𝐴))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssel 3964 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → 𝑦 ∈ ℋ)) | |
2 | ocorth 29071 | . . . . . 6 ⊢ (𝐴 ⊆ ℋ → ((𝑦 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)) → (𝑦 ·ih 𝑥) = 0)) | |
3 | 2 | expd 418 | . . . . 5 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → (𝑥 ∈ (⊥‘𝐴) → (𝑦 ·ih 𝑥) = 0))) |
4 | 3 | ralrimdv 3191 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0)) |
5 | 1, 4 | jcad 515 | . . 3 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) |
6 | ocss 29065 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (⊥‘𝐴) ⊆ ℋ) | |
7 | ocel 29061 | . . . 4 ⊢ ((⊥‘𝐴) ⊆ ℋ → (𝑦 ∈ (⊥‘(⊥‘𝐴)) ↔ (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) | |
8 | 6, 7 | syl 17 | . . 3 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ (⊥‘(⊥‘𝐴)) ↔ (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) |
9 | 5, 8 | sylibrd 261 | . 2 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → 𝑦 ∈ (⊥‘(⊥‘𝐴)))) |
10 | 9 | ssrdv 3976 | 1 ⊢ (𝐴 ⊆ ℋ → 𝐴 ⊆ (⊥‘(⊥‘𝐴))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 = wceq 1536 ∈ wcel 2113 ∀wral 3141 ⊆ wss 3939 ‘cfv 6358 (class class class)co 7159 0cc0 10540 ℋchba 28699 ·ih csp 28702 ⊥cort 28710 |
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 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 ax-resscn 10597 ax-1cn 10598 ax-icn 10599 ax-addcl 10600 ax-addrcl 10601 ax-mulcl 10602 ax-mulrcl 10603 ax-mulcom 10604 ax-addass 10605 ax-mulass 10606 ax-distr 10607 ax-i2m1 10608 ax-1ne0 10609 ax-1rid 10610 ax-rnegex 10611 ax-rrecex 10612 ax-cnre 10613 ax-pre-lttri 10614 ax-pre-lttrn 10615 ax-pre-ltadd 10616 ax-pre-mulgt0 10617 ax-hilex 28779 ax-hfvadd 28780 ax-hv0cl 28783 ax-hfvmul 28785 ax-hvmul0 28790 ax-hfi 28859 ax-his1 28862 ax-his2 28863 ax-his3 28864 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ne 3020 df-nel 3127 df-ral 3146 df-rex 3147 df-reu 3148 df-rmo 3149 df-rab 3150 df-v 3499 df-sbc 3776 df-csb 3887 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-nul 4295 df-if 4471 df-pw 4544 df-sn 4571 df-pr 4573 df-op 4577 df-uni 4842 df-iun 4924 df-br 5070 df-opab 5132 df-mpt 5150 df-id 5463 df-po 5477 df-so 5478 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-rn 5569 df-res 5570 df-ima 5571 df-iota 6317 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7117 df-ov 7162 df-oprab 7163 df-mpo 7164 df-er 8292 df-en 8513 df-dom 8514 df-sdom 8515 df-pnf 10680 df-mnf 10681 df-xr 10682 df-ltxr 10683 df-le 10684 df-sub 10875 df-neg 10876 df-div 11301 df-2 11703 df-cj 14461 df-re 14462 df-im 14463 df-sh 28987 df-oc 29032 |
This theorem is referenced by: shococss 29074 occon3 29077 hsupunss 29123 spanssoc 29129 shunssji 29149 ococin 29188 sshhococi 29326 h1did 29331 spansnpji 29358 pjoccoi 29958 |
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