one fable-low hijack cell
pair lean / sml
envelope code_haskell_alt
ordering BA
effort low
Haskell alternative operator — '{X} <|> {Y}' (Alternative class).
verdictpicked sml (second-offered)
· classifierB
· tiernone
response (200 chars)
It looks like you're comparing **Lean** and **Standard ML (SML)** — here's a quick rundown:
| | **Lean** | **SML** |
|---|---|---|
| **Purpose** | Theorem prover + general-purpose functional language
neighbors