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Related theorems GIF version |
| Description: Hilbert lattice ordering in terms of join. |
| Ref | Expression |
|---|---|
| chlejb1t | ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → (A ⊆ B ↔ (A ∨ℋ B) = B)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseq1 1521 | . . 3 ⊢ (A = if(A ∈ Cℋ , A, 0ℋ) → (A ⊆ B ↔ if(A ∈ Cℋ , |