Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > lindsss | Structured version Visualization version GIF version |
Description: Any subset of an independent set is independent. (Contributed by Stefan O'Rear, 24-Feb-2015.) |
Ref | Expression |
---|---|
lindsss | ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → 𝐺 ∈ (LIndS‘𝑊)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2738 | . . . . . 6 ⊢ (Base‘𝑊) = (Base‘𝑊) | |
2 | 1 | linds1 21017 | . . . . 5 ⊢ (𝐹 ∈ (LIndS‘𝑊) → 𝐹 ⊆ (Base‘𝑊)) |
3 | 2 | adantl 482 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊)) → 𝐹 ⊆ (Base‘𝑊)) |
4 | sstr2 3928 | . . . 4 ⊢ (𝐺 ⊆ 𝐹 → (𝐹 ⊆ (Base‘𝑊) → 𝐺 ⊆ (Base‘𝑊))) | |
5 | 3, 4 | syl5com 31 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊)) → (𝐺 ⊆ 𝐹 → 𝐺 ⊆ (Base‘𝑊))) |
6 | 5 | 3impia 1116 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → 𝐺 ⊆ (Base‘𝑊)) |
7 | simp1 1135 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → 𝑊 ∈ LMod) | |
8 | linds2 21018 | . . . . 5 ⊢ (𝐹 ∈ (LIndS‘𝑊) → ( I ↾ 𝐹) LIndF 𝑊) | |
9 | 8 | 3ad2ant2 1133 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → ( I ↾ 𝐹) LIndF 𝑊) |
10 | lindfres 21030 | . . . 4 ⊢ ((𝑊 ∈ LMod ∧ ( I ↾ 𝐹) LIndF 𝑊) → (( I ↾ 𝐹) ↾ 𝐺) LIndF 𝑊) | |
11 | 7, 9, 10 | syl2anc 584 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → (( I ↾ 𝐹) ↾ 𝐺) LIndF 𝑊) |
12 | resabs1 5921 | . . . . 5 ⊢ (𝐺 ⊆ 𝐹 → (( I ↾ 𝐹) ↾ 𝐺) = ( I ↾ 𝐺)) | |
13 | 12 | breq1d 5084 | . . . 4 ⊢ (𝐺 ⊆ 𝐹 → ((( I ↾ 𝐹) ↾ 𝐺) LIndF 𝑊 ↔ ( I ↾ 𝐺) LIndF 𝑊)) |
14 | 13 | 3ad2ant3 1134 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → ((( I ↾ 𝐹) ↾ 𝐺) LIndF 𝑊 ↔ ( I ↾ 𝐺) LIndF 𝑊)) |
15 | 11, 14 | mpbid 231 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → ( I ↾ 𝐺) LIndF 𝑊) |
16 | 1 | islinds 21016 | . . 3 ⊢ (𝑊 ∈ LMod → (𝐺 ∈ (LIndS‘𝑊) ↔ (𝐺 ⊆ (Base‘𝑊) ∧ ( I ↾ 𝐺) LIndF 𝑊))) |
17 | 16 | 3ad2ant1 1132 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → (𝐺 ∈ (LIndS‘𝑊) ↔ (𝐺 ⊆ (Base‘𝑊) ∧ ( I ↾ 𝐺) LIndF 𝑊))) |
18 | 6, 15, 17 | mpbir2and 710 | 1 ⊢ ((𝑊 ∈ LMod ∧ 𝐹 ∈ (LIndS‘𝑊) ∧ 𝐺 ⊆ 𝐹) → 𝐺 ∈ (LIndS‘𝑊)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1086 ∈ wcel 2106 ⊆ wss 3887 class class class wbr 5074 I cid 5488 ↾ cres 5591 ‘cfv 6433 Basecbs 16912 LModclmod 20123 LIndF clindf 21011 LIndSclinds 21012 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-1cn 10929 ax-addcl 10931 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-nn 11974 df-slot 16883 df-ndx 16895 df-base 16913 df-0g 17152 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-grp 18580 df-lmod 20125 df-lss 20194 df-lsp 20234 df-lindf 21013 df-linds 21014 |
This theorem is referenced by: islinds4 21042 linds2eq 31575 dimkerim 31708 |
Copyright terms: Public domain | W3C validator |