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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 3933 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → 𝑦 ∈ ℋ)) | |
| 2 | ocorth 31552 | . . . . . 6 ⊢ (𝐴 ⊆ ℋ → ((𝑦 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)) → (𝑦 ·ih 𝑥) = 0)) | |
| 3 | 2 | expd 420 | . . . . 5 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → (𝑥 ∈ (⊥‘𝐴) → (𝑦 ·ih 𝑥) = 0))) |
| 4 | 3 | ralrimdv 3163 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0)) |
| 5 | 1, 4 | jcad 521 | . . 3 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) |
| 6 | ocss 31546 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (⊥‘𝐴) ⊆ ℋ) | |
| 7 | ocel 31542 | . . . 4 ⊢ ((⊥‘𝐴) ⊆ ℋ → (𝑦 ∈ (⊥‘(⊥‘𝐴)) ↔ (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) | |
| 8 | 6, 7 | syl 18 | . . 3 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ (⊥‘(⊥‘𝐴)) ↔ (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) |
| 9 | 5, 8 | sylibrd 262 | . 2 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → 𝑦 ∈ (⊥‘(⊥‘𝐴)))) |
| 10 | 9 | ssrdv 3945 | 1 ⊢ (𝐴 ⊆ ℋ → 𝐴 ⊆ (⊥‘(⊥‘𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1563 ∈ wcel 2145 ∀wral 3079 ⊆ wss 3907 ‘cfv 6525 (class class class)co 7400 0cc0 11088 ℋchba 31180 ·ih csp 31183 ⊥cort 31191 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-hilex 31260 ax-hfvadd 31261 ax-hv0cl 31264 ax-hfvmul 31266 ax-hvmul0 31271 ax-hfi 31340 ax-his1 31343 ax-his2 31344 ax-his3 31345 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12225 df-2 12294 df-cj 15140 df-re 15141 df-im 15142 df-sh 31468 df-oc 31513 |
| This theorem is referenced by: shococss 31555 occon3 31558 hsupunss 31604 spanssoc 31610 shunssji 31630 ococin 31669 sshhococi 31807 h1did 31812 spansnpji 31839 pjoccoi 32439 |
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