one fable-low hijack cell
pair idris / lean
envelope en_bare_or
ordering AB
effort low
Bare English 'or' — '{X} or {Y}'
verdictpicked lean (second-offered)
· classifierB
· tiernone
response (200 chars)
Depends on what you're after:
**Lean (Lean 4)** if:
- You want to do mathematics/formal verification — mathlib is enormous and the math community is heavily invested
- You want active development, to
neighbors