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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 3931 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → 𝑦 ∈ ℋ)) | |
| 2 | ocorth 31253 | . . . . . 6 ⊢ (𝐴 ⊆ ℋ → ((𝑦 ∈ 𝐴 ∧ 𝑥 ∈ (⊥‘𝐴)) → (𝑦 ·ih 𝑥) = 0)) | |
| 3 | 2 | expd 415 | . . . . 5 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → (𝑥 ∈ (⊥‘𝐴) → (𝑦 ·ih 𝑥) = 0))) |
| 4 | 3 | ralrimdv 3127 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0)) |
| 5 | 1, 4 | jcad 512 | . . 3 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → (𝑦 ∈ ℋ ∧ ∀𝑥 ∈ (⊥‘𝐴)(𝑦 ·ih 𝑥) = 0))) |
| 6 | ocss 31247 | . . . 4 ⊢ (𝐴 ⊆ ℋ → (⊥‘𝐴) ⊆ ℋ) | |
| 7 | ocel 31243 | . . . 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 259 | . 2 ⊢ (𝐴 ⊆ ℋ → (𝑦 ∈ 𝐴 → 𝑦 ∈ (⊥‘(⊥‘𝐴)))) |
| 10 | 9 | ssrdv 3943 | 1 ⊢ (𝐴 ⊆ ℋ → 𝐴 ⊆ (⊥‘(⊥‘𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ∀wral 3044 ⊆ wss 3905 ‘cfv 6486 (class class class)co 7353 0cc0 11028 ℋchba 30881 ·ih csp 30884 ⊥cort 30892 |
| 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 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 ax-hilex 30961 ax-hfvadd 30962 ax-hv0cl 30965 ax-hfvmul 30967 ax-hvmul0 30972 ax-hfi 31041 ax-his1 31044 ax-his2 31045 ax-his3 31046 |
| 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 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3345 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-iun 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-om 7807 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-er 8632 df-en 8880 df-dom 8881 df-sdom 8882 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 df-div 11796 df-nn 12147 df-2 12209 df-cj 15024 df-re 15025 df-im 15026 df-sh 31169 df-oc 31214 |
| This theorem is referenced by: shococss 31256 occon3 31259 hsupunss 31305 spanssoc 31311 shunssji 31331 ococin 31370 sshhococi 31508 h1did 31513 spansnpji 31540 pjoccoi 32140 |
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