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| Mirrors > Home > HSE Home > Th. List > shslubi | Structured version Visualization version GIF version | ||
| Description: The least upper bound law for Hilbert subspace sum. (Contributed by NM, 15-Jun-2004.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shslub.1 | ⊢ 𝐴 ∈ Sℋ |
| shslub.2 | ⊢ 𝐵 ∈ Sℋ |
| shslub.3 | ⊢ 𝐶 ∈ Sℋ |
| Ref | Expression |
|---|---|
| shslubi | ⊢ ((𝐴 ⊆ 𝐶 ∧ 𝐵 ⊆ 𝐶) ↔ (𝐴 +ℋ 𝐵) ⊆ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | shslub.1 | . . . . 5 ⊢ 𝐴 ∈ Sℋ | |
| 2 | shslub.3 | . . . . 5 ⊢ 𝐶 ∈ Sℋ | |
| 3 | shslub.2 | . . . . 5 ⊢ 𝐵 ∈ Sℋ | |
| 4 | 1, 2, 3 | shlessi 31859 | . . . 4 ⊢ (𝐴 ⊆ 𝐶 → (𝐴 +ℋ 𝐵) ⊆ (𝐶 +ℋ 𝐵)) |
| 5 | 2, 3 | shscomi 31845 | . . . 4 ⊢ (𝐶 +ℋ 𝐵) = (𝐵 +ℋ 𝐶) |
| 6 | 4, 5 | sseqtrdi 3971 | . . 3 ⊢ (𝐴 ⊆ 𝐶 → (𝐴 +ℋ 𝐵) ⊆ (𝐵 +ℋ 𝐶)) |
| 7 | 3, 2, 2 | shlessi 31859 | . . . 4 ⊢ (𝐵 ⊆ 𝐶 → (𝐵 +ℋ 𝐶) ⊆ (𝐶 +ℋ 𝐶)) |
| 8 | 2 | shsidmi 31866 | . . . 4 ⊢ (𝐶 +ℋ 𝐶) = 𝐶 |
| 9 | 7, 8 | sseqtrdi 3971 | . . 3 ⊢ (𝐵 ⊆ 𝐶 → (𝐵 +ℋ 𝐶) ⊆ 𝐶) |
| 10 | 6, 9 | sylan9ss 3944 | . 2 ⊢ ((𝐴 ⊆ 𝐶 ∧ 𝐵 ⊆ 𝐶) → (𝐴 +ℋ 𝐵) ⊆ 𝐶) |
| 11 | 1, 3 | shsub1i 31854 | . . . 4 ⊢ 𝐴 ⊆ (𝐴 +ℋ 𝐵) |
| 12 | sstr 3939 | . . . 4 ⊢ ((𝐴 ⊆ (𝐴 +ℋ 𝐵) ∧ (𝐴 +ℋ 𝐵) ⊆ 𝐶) → 𝐴 ⊆ 𝐶) | |
| 13 | 11, 12 | mpan 703 | . . 3 ⊢ ((𝐴 +ℋ 𝐵) ⊆ 𝐶 → 𝐴 ⊆ 𝐶) |
| 14 | 3, 1 | shsub2i 31855 | . . . 4 ⊢ 𝐵 ⊆ (𝐴 +ℋ 𝐵) |
| 15 | sstr 3939 | . . . 4 ⊢ ((𝐵 ⊆ (𝐴 +ℋ 𝐵) ∧ (𝐴 +ℋ 𝐵) ⊆ 𝐶) → 𝐵 ⊆ 𝐶) | |
| 16 | 14, 15 | mpan 703 | . . 3 ⊢ ((𝐴 +ℋ 𝐵) ⊆ 𝐶 → 𝐵 ⊆ 𝐶) |
| 17 | 13, 16 | jca 521 | . 2 ⊢ ((𝐴 +ℋ 𝐵) ⊆ 𝐶 → (𝐴 ⊆ 𝐶 ∧ 𝐵 ⊆ 𝐶)) |
| 18 | 10, 17 | impbii 212 | 1 ⊢ ((𝐴 ⊆ 𝐶 ∧ 𝐵 ⊆ 𝐶) ↔ (𝐴 +ℋ 𝐵) ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 ∈ wcel 2145 ⊆ wss 3899 (class class class)co 7414 Sℋ csh 31410 +ℋ cph 31413 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-resscn 11182 ax-1cn 11183 ax-icn 11184 ax-addcl 11185 ax-addrcl 11186 ax-mulcl 11187 ax-mulrcl 11188 ax-mulcom 11189 ax-addass 11190 ax-mulass 11191 ax-distr 11192 ax-i2m1 11193 ax-1ne0 11194 ax-1rid 11195 ax-rnegex 11196 ax-rrecex 11197 ax-cnre 11198 ax-pre-lttri 11199 ax-pre-lttrn 11200 ax-pre-ltadd 11201 ax-hilex 31481 ax-hfvadd 31482 ax-hvcom 31483 ax-hvass 31484 ax-hv0cl 31485 ax-hvaddid 31486 ax-hfvmul 31487 ax-hvmulid 31488 ax-hvdistr2 31491 ax-hvmul0 31492 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-er 8697 df-en 8954 df-dom 8955 df-sdom 8956 df-pnf 11270 df-mnf 11271 df-ltxr 11273 df-sub 11468 df-neg 11469 df-grpo 30975 df-ablo 31027 df-hvsub 31453 df-sh 31689 df-shs 31790 |
| This theorem is used by: shlesb1i 31868 shsval2i 31869 |
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