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| Mirrors > Home > MPE Home > Th. List > f1linds | Structured version Visualization version GIF version | ||
| Description: A family constructed from non-repeated elements of an independent set is independent. (Contributed by Stefan O'Rear, 26-Feb-2015.) |
| Ref | Expression |
|---|---|
| f1linds | ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → 𝐹 LIndF 𝑊) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1f 6783 | . . . 4 ⊢ (𝐹:𝐷–1-1→𝑆 → 𝐹:𝐷⟶𝑆) | |
| 2 | fcoi2 6762 | . . . 4 ⊢ (𝐹:𝐷⟶𝑆 → (( I ↾ 𝑆) ∘ 𝐹) = 𝐹) | |
| 3 | 1, 2 | syl 18 | . . 3 ⊢ (𝐹:𝐷–1-1→𝑆 → (( I ↾ 𝑆) ∘ 𝐹) = 𝐹) |
| 4 | 3 | 3ad2ant3 1153 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → (( I ↾ 𝑆) ∘ 𝐹) = 𝐹) |
| 5 | simp1 1154 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → 𝑊 ∈ LMod) | |
| 6 | linds2 22126 | . . . 4 ⊢ (𝑆 ∈ (LIndS‘𝑊) → ( I ↾ 𝑆) LIndF 𝑊) | |
| 7 | 6 | 3ad2ant2 1152 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → ( I ↾ 𝑆) LIndF 𝑊) |
| 8 | dmresi 6046 | . . . . . 6 ⊢ dom ( I ↾ 𝑆) = 𝑆 | |
| 9 | f1eq3 6780 | . . . . . 6 ⊢ (dom ( I ↾ 𝑆) = 𝑆 → (𝐹:𝐷–1-1→dom ( I ↾ 𝑆) ↔ 𝐹:𝐷–1-1→𝑆)) | |
| 10 | 8, 9 | ax-mp 5 | . . . . 5 ⊢ (𝐹:𝐷–1-1→dom ( I ↾ 𝑆) ↔ 𝐹:𝐷–1-1→𝑆) |
| 11 | 10 | biimpri 231 | . . . 4 ⊢ (𝐹:𝐷–1-1→𝑆 → 𝐹:𝐷–1-1→dom ( I ↾ 𝑆)) |
| 12 | 11 | 3ad2ant3 1153 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → 𝐹:𝐷–1-1→dom ( I ↾ 𝑆)) |
| 13 | f1lindf 22137 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ ( I ↾ 𝑆) LIndF 𝑊 ∧ 𝐹:𝐷–1-1→dom ( I ↾ 𝑆)) → (( I ↾ 𝑆) ∘ 𝐹) LIndF 𝑊) | |
| 14 | 5, 7, 12, 13 | syl3anc 1398 | . 2 ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → (( I ↾ 𝑆) ∘ 𝐹) LIndF 𝑊) |
| 15 | 4, 14 | eqbrtrrd 5128 | 1 ⊢ ((𝑊 ∈ LMod ∧ 𝑆 ∈ (LIndS‘𝑊) ∧ 𝐹:𝐷–1-1→𝑆) → 𝐹 LIndF 𝑊) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ w3a 1103 = wceq 1569 ∈ wcel 2144 class class class wbr 5102 I cid 5545 dom cdm 5651 ↾ cres 5653 ∘ ccom 5655 ⟶wf 6539 –1-1→wf1 6540 ‘cfv 6543 LModclmod 21144 LIndF clindf 22119 LIndSclinds 22120 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-1cn 11265 ax-addcl 11267 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-om 7882 df-2nd 8006 df-frecs 8307 df-wrecs 8338 df-recs 8387 df-rdg 8426 df-nn 12343 df-slot 17369 df-ndx 17381 df-base 17397 df-0g 17621 df-mgm 18825 df-sgrp 18917 df-mnd 18933 df-grp 19156 df-lmod 21146 df-lss 21216 df-lsp 21256 df-lindf 22121 df-linds 22122 |
| This theorem is used by: islindf3 22141 lindsmm 22143 lbslcic 22156 |
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