Description: An ortholattice is a poset. (Contributed by NM, 16-Oct-2011) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | olposN | ⊢ ( 𝐾 ∈ OL → 𝐾 ∈ Poset ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | olop | ⊢ ( 𝐾 ∈ OL → 𝐾 ∈ OP ) | |
| 2 | opposet | ⊢ ( 𝐾 ∈ OP → 𝐾 ∈ Poset ) | |
| 3 | 1 2 | syl | ⊢ ( 𝐾 ∈ OL → 𝐾 ∈ Poset ) |