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| Mirrors > Home > HSE Home > Th. List > shless | Structured version Visualization version GIF version | ||
| Description: Subset implies subset of subspace sum. (Contributed by Mario Carneiro, 15-May-2014.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| shless | ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → (𝐴 +ℋ 𝐶) ⊆ (𝐵 +ℋ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssrexv 3991 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → (∃𝑦 ∈ 𝐴 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧) → ∃𝑦 ∈ 𝐵 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧))) | |
| 2 | 1 | adantl 481 | . . 3 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → (∃𝑦 ∈ 𝐴 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧) → ∃𝑦 ∈ 𝐵 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧))) |
| 3 | simpl1 1193 | . . . 4 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → 𝐴 ∈ Sℋ ) | |
| 4 | simpl3 1195 | . . . 4 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → 𝐶 ∈ Sℋ ) | |
| 5 | shsel 31385 | . . . 4 ⊢ ((𝐴 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) → (𝑥 ∈ (𝐴 +ℋ 𝐶) ↔ ∃𝑦 ∈ 𝐴 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧))) | |
| 6 | 3, 4, 5 | syl2anc 585 | . . 3 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → (𝑥 ∈ (𝐴 +ℋ 𝐶) ↔ ∃𝑦 ∈ 𝐴 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧))) |
| 7 | simpl2 1194 | . . . 4 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → 𝐵 ∈ Sℋ ) | |
| 8 | shsel 31385 | . . . 4 ⊢ ((𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) → (𝑥 ∈ (𝐵 +ℋ 𝐶) ↔ ∃𝑦 ∈ 𝐵 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧))) | |
| 9 | 7, 4, 8 | syl2anc 585 | . . 3 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → (𝑥 ∈ (𝐵 +ℋ 𝐶) ↔ ∃𝑦 ∈ 𝐵 ∃𝑧 ∈ 𝐶 𝑥 = (𝑦 +ℎ 𝑧))) |
| 10 | 2, 6, 9 | 3imtr4d 294 | . 2 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → (𝑥 ∈ (𝐴 +ℋ 𝐶) → 𝑥 ∈ (𝐵 +ℋ 𝐶))) |
| 11 | 10 | ssrdv 3927 | 1 ⊢ (((𝐴 ∈ Sℋ ∧ 𝐵 ∈ Sℋ ∧ 𝐶 ∈ Sℋ ) ∧ 𝐴 ⊆ 𝐵) → (𝐴 +ℋ 𝐶) ⊆ (𝐵 +ℋ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∃wrex 3061 ⊆ wss 3889 (class class class)co 7367 +ℎ cva 30991 Sℋ csh 30999 +ℋ cph 31002 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-hilex 31070 ax-hfvadd 31071 ax-hvcom 31072 ax-hvass 31073 ax-hv0cl 31074 ax-hvaddid 31075 ax-hfvmul 31076 ax-hvmulid 31077 ax-hvdistr2 31080 ax-hvmul0 31081 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-po 5539 df-so 5540 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-ltxr 11184 df-sub 11379 df-neg 11380 df-grpo 30564 df-ablo 30616 df-hvsub 31042 df-sh 31278 df-shs 31379 |
| This theorem is referenced by: shlessi 31448 pjpjpre 31490 chscllem1 31708 chscllem2 31709 chscllem3 31710 |
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