eqn_hole.lean:3:7: error: don't know how to synthesize placeholder
context:
f : ℕ → ℕ
⊢ ℕ
eqn_hole.lean:2:11: error: invalid non-exhaustive set of equations (use 'set_option trace.eqn_compiler.elim_match true' for additional details)
eqn_hole.lean:8:13: error: don't know how to synthesize placeholder
context:
g : ℕ → ℕ,
n : ℕ
⊢ ℕ
eqn_hole.lean:6:11: error: support for well-founded recursion has not been implemented yet, use 'set_option trace.eqn_compiler true' for additional information