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Mirrors > Home > HSE Home > Th. List > chscl | Structured version Visualization version GIF version |
Description: The subspace sum of two closed orthogonal spaces is closed. (Contributed by NM, 19-Oct-1999.) (Proof shortened by Mario Carneiro, 19-May-2014.) (New usage is discouraged.) |
Ref | Expression |
---|---|
chscl.1 | ⊢ (𝜑 → 𝐴 ∈ Cℋ ) |
chscl.2 | ⊢ (𝜑 → 𝐵 ∈ Cℋ ) |
chscl.3 | ⊢ (𝜑 → 𝐵 ⊆ (⊥‘𝐴)) |
Ref | Expression |
---|---|
chscl | ⊢ (𝜑 → (𝐴 +ℋ 𝐵) ∈ Cℋ ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | chscl.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ Cℋ ) | |
2 | chsh 28670 | . . . 4 ⊢ (𝐴 ∈ Cℋ → 𝐴 ∈ Sℋ ) | |
3 | 1, 2 | syl 17 | . . 3 ⊢ (𝜑 → 𝐴 ∈ Sℋ ) |
4 | chscl.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ Cℋ ) | |
5 | chsh 28670 | . . . 4 ⊢ (𝐵 ∈ Cℋ → 𝐵 ∈ Sℋ ) | |
6 | 4, 5 | syl 17 | . . 3 ⊢ (𝜑 → 𝐵 ∈ Sℋ ) |
7 | shscl 28766 | . . 3 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ) → (𝐴 +ℋ 𝐵) ∈ Sℋ ) | |
8 | 3, 6, 7 | syl2anc 579 | . 2 ⊢ (𝜑 → (𝐴 +ℋ 𝐵) ∈ Sℋ ) |
9 | 1 | adantr 474 | . . . . 5 ⊢ ((𝜑 ∧ (𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧)) → 𝐴 ∈ Cℋ ) |
10 | 4 | adantr 474 | . . . . 5 ⊢ ((𝜑 ∧ (𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧)) → 𝐵 ∈ Cℋ ) |
11 | chscl.3 | . . . . . 6 ⊢ (𝜑 → 𝐵 ⊆ (⊥‘𝐴)) | |
12 | 11 | adantr 474 | . . . . 5 ⊢ ((𝜑 ∧ (𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧)) → 𝐵 ⊆ (⊥‘𝐴)) |
13 | simprl 761 | . . . . 5 ⊢ ((𝜑 ∧ (𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧)) → 𝑓:ℕ⟶(𝐴 +ℋ 𝐵)) | |
14 | simprr 763 | . . . . 5 ⊢ ((𝜑 ∧ (𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧)) → 𝑓 ⇝𝑣 𝑧) | |
15 | eqid 2778 | . . . . 5 ⊢ (𝑥 ∈ ℕ ↦ ((projℎ‘𝐴)‘(𝑓‘𝑥))) = (𝑥 ∈ ℕ ↦ ((projℎ‘𝐴)‘(𝑓‘𝑥))) | |
16 | eqid 2778 | . . . . 5 ⊢ (𝑥 ∈ ℕ ↦ ((projℎ‘𝐵)‘(𝑓‘𝑥))) = (𝑥 ∈ ℕ ↦ ((projℎ‘𝐵)‘(𝑓‘𝑥))) | |
17 | 9, 10, 12, 13, 14, 15, 16 | chscllem4 29088 | . . . 4 ⊢ ((𝜑 ∧ (𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧)) → 𝑧 ∈ (𝐴 +ℋ 𝐵)) |
18 | 17 | ex 403 | . . 3 ⊢ (𝜑 → ((𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧) → 𝑧 ∈ (𝐴 +ℋ 𝐵))) |
19 | 18 | alrimivv 1971 | . 2 ⊢ (𝜑 → ∀𝑓∀𝑧((𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧) → 𝑧 ∈ (𝐴 +ℋ 𝐵))) |
20 | isch2 28669 | . 2 ⊢ ((𝐴 +ℋ 𝐵) ∈ Cℋ ↔ ((𝐴 +ℋ 𝐵) ∈ Sℋ ∧ ∀𝑓∀𝑧((𝑓:ℕ⟶(𝐴 +ℋ 𝐵) ∧ 𝑓 ⇝𝑣 𝑧) → 𝑧 ∈ (𝐴 +ℋ 𝐵)))) | |
21 | 8, 19, 20 | sylanbrc 578 | 1 ⊢ (𝜑 → (𝐴 +ℋ 𝐵) ∈ Cℋ ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 386 ∀wal 1599 ∈ wcel 2107 ⊆ wss 3792 class class class wbr 4888 ↦ cmpt 4967 ⟶wf 6133 ‘cfv 6137 (class class class)co 6924 ℕcn 11379 ⇝𝑣 chli 28373 Sℋ csh 28374 Cℋ cch 28375 ⊥cort 28376 +ℋ cph 28377 projℎcpjh 28383 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1839 ax-4 1853 ax-5 1953 ax-6 2021 ax-7 2055 ax-8 2109 ax-9 2116 ax-10 2135 ax-11 2150 ax-12 2163 ax-13 2334 ax-ext 2754 ax-rep 5008 ax-sep 5019 ax-nul 5027 ax-pow 5079 ax-pr 5140 ax-un 7228 ax-inf2 8837 ax-cnex 10330 ax-resscn 10331 ax-1cn 10332 ax-icn 10333 ax-addcl 10334 ax-addrcl 10335 ax-mulcl 10336 ax-mulrcl 10337 ax-mulcom 10338 ax-addass 10339 ax-mulass 10340 ax-distr 10341 ax-i2m1 10342 ax-1ne0 10343 ax-1rid 10344 ax-rnegex 10345 ax-rrecex 10346 ax-cnre 10347 ax-pre-lttri 10348 ax-pre-lttrn 10349 ax-pre-ltadd 10350 ax-pre-mulgt0 10351 ax-pre-sup 10352 ax-addf 10353 ax-mulf 10354 ax-hilex 28445 ax-hfvadd 28446 ax-hvcom 28447 ax-hvass 28448 ax-hv0cl 28449 ax-hvaddid 28450 ax-hfvmul 28451 ax-hvmulid 28452 ax-hvmulass 28453 ax-hvdistr1 28454 ax-hvdistr2 28455 ax-hvmul0 28456 ax-hfi 28525 ax-his1 28528 ax-his2 28529 ax-his3 28530 ax-his4 28531 ax-hcompl 28648 |
This theorem depends on definitions: df-bi 199 df-an 387 df-or 837 df-3or 1072 df-3an 1073 df-tru 1605 df-ex 1824 df-nf 1828 df-sb 2012 df-mo 2551 df-eu 2587 df-clab 2764 df-cleq 2770 df-clel 2774 df-nfc 2921 df-ne 2970 df-nel 3076 df-ral 3095 df-rex 3096 df-reu 3097 df-rmo 3098 df-rab 3099 df-v 3400 df-sbc 3653 df-csb 3752 df-dif 3795 df-un 3797 df-in 3799 df-ss 3806 df-pss 3808 df-nul 4142 df-if 4308 df-pw 4381 df-sn 4399 df-pr 4401 df-tp 4403 df-op 4405 df-uni 4674 df-int 4713 df-iun 4757 df-iin 4758 df-br 4889 df-opab 4951 df-mpt 4968 df-tr 4990 df-id 5263 df-eprel 5268 df-po 5276 df-so 5277 df-fr 5316 df-se 5317 df-we 5318 df-xp 5363 df-rel 5364 df-cnv 5365 df-co 5366 df-dm 5367 df-rn 5368 df-res 5369 df-ima 5370 df-pred 5935 df-ord 5981 df-on 5982 df-lim 5983 df-suc 5984 df-iota 6101 df-fun 6139 df-fn 6140 df-f 6141 df-f1 6142 df-fo 6143 df-f1o 6144 df-fv 6145 df-isom 6146 df-riota 6885 df-ov 6927 df-oprab 6928 df-mpt2 6929 df-of 7176 df-om 7346 df-1st 7447 df-2nd 7448 df-supp 7579 df-wrecs 7691 df-recs 7753 df-rdg 7791 df-1o 7845 df-2o 7846 df-oadd 7849 df-er 8028 df-map 8144 df-pm 8145 df-ixp 8197 df-en 8244 df-dom 8245 df-sdom 8246 df-fin 8247 df-fsupp 8566 df-fi 8607 df-sup 8638 df-inf 8639 df-oi 8706 df-card 9100 df-cda 9327 df-pnf 10415 df-mnf 10416 df-xr 10417 df-ltxr 10418 df-le 10419 df-sub 10610 df-neg 10611 df-div 11036 df-nn 11380 df-2 11443 df-3 11444 df-4 11445 df-5 11446 df-6 11447 df-7 11448 df-8 11449 df-9 11450 df-n0 11648 df-z 11734 df-dec 11851 df-uz 11998 df-q 12101 df-rp 12143 df-xneg 12262 df-xadd 12263 df-xmul 12264 df-icc 12499 df-fz 12649 df-fzo 12790 df-seq 13125 df-exp 13184 df-hash 13442 df-cj 14252 df-re 14253 df-im 14254 df-sqrt 14388 df-abs 14389 df-struct 16268 df-ndx 16269 df-slot 16270 df-base 16272 df-sets 16273 df-ress 16274 df-plusg 16362 df-mulr 16363 df-sca 16365 df-vsca 16366 df-ip 16367 df-tset 16368 df-ple 16369 df-ds 16371 df-hom 16373 df-cco 16374 df-rest 16480 df-topn 16481 df-0g 16499 df-gsum 16500 df-topgen 16501 df-pt 16502 df-prds 16505 df-xrs 16559 df-qtop 16564 df-imas 16565 df-xps 16567 df-mre 16643 df-mrc 16644 df-acs 16646 df-mgm 17639 df-sgrp 17681 df-mnd 17692 df-submnd 17733 df-mulg 17939 df-cntz 18144 df-cmn 18592 df-psmet 20145 df-xmet 20146 df-met 20147 df-bl 20148 df-mopn 20149 df-top 21117 df-topon 21134 df-topsp 21156 df-bases 21169 df-cn 21450 df-cnp 21451 df-lm 21452 df-haus 21538 df-tx 21785 df-hmeo 21978 df-xms 22544 df-tms 22546 df-cau 23473 df-grpo 27937 df-gid 27938 df-ginv 27939 df-gdiv 27940 df-ablo 27989 df-vc 28003 df-nv 28036 df-va 28039 df-ba 28040 df-sm 28041 df-0v 28042 df-vs 28043 df-nmcv 28044 df-ims 28045 df-hnorm 28414 df-hba 28415 df-hvsub 28417 df-hlim 28418 df-hcau 28419 df-sh 28653 df-ch 28667 df-oc 28698 df-ch0 28699 df-shs 28756 df-pjh 28843 |
This theorem is referenced by: osumi 29090 |
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