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Description: An independent set is a set which is independent as a family. See also islinds3 and islinds4 . (Contributed by Stefan O'Rear, 24-Feb-2015)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | df-linds | ⊢ LIndS = ( 𝑤 ∈ V ↦ { 𝑠 ∈ 𝒫 ( Base ‘ 𝑤 ) ∣ ( I ↾ 𝑠 ) LIndF 𝑤 } ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | clinds | ⊢ LIndS | |
| 1 | vw | ⊢ 𝑤 | |
| 2 | cvv | ⊢ V | |
| 3 | vs | ⊢ 𝑠 | |
| 4 | cbs | ⊢ Base | |
| 5 | 1 | cv | ⊢ 𝑤 |
| 6 | 5 4 | cfv | ⊢ ( Base ‘ 𝑤 ) |
| 7 | 6 | cpw | ⊢ 𝒫 ( Base ‘ 𝑤 ) |
| 8 | cid | ⊢ I | |
| 9 | 3 | cv | ⊢ 𝑠 |
| 10 | 8 9 | cres | ⊢ ( I ↾ 𝑠 ) |
| 11 | clindf | ⊢ LIndF | |
| 12 | 10 5 11 | wbr | ⊢ ( I ↾ 𝑠 ) LIndF 𝑤 |
| 13 | 12 3 7 | crab | ⊢ { 𝑠 ∈ 𝒫 ( Base ‘ 𝑤 ) ∣ ( I ↾ 𝑠 ) LIndF 𝑤 } |
| 14 | 1 2 13 | cmpt | ⊢ ( 𝑤 ∈ V ↦ { 𝑠 ∈ 𝒫 ( Base ‘ 𝑤 ) ∣ ( I ↾ 𝑠 ) LIndF 𝑤 } ) |
| 15 | 0 14 | wceq | ⊢ LIndS = ( 𝑤 ∈ V ↦ { 𝑠 ∈ 𝒫 ( Base ‘ 𝑤 ) ∣ ( I ↾ 𝑠 ) LIndF 𝑤 } ) |