Set: pp::colors
  Set: pp::unicode
  Imported 'find'
theorem congr1 {A B : TypeU} {f g : A → B} (a : A) (H : f = g) : f a = g a
theorem congr2 {A B : TypeU} {a b : A} (f : A → B) (H : a = b) : f a = f b
theorem congr {A B : TypeU} {f g : A → B} {a b : A} (H1 : f = g) (H2 : a = b) : f a = g b
find.lean:3:0: error: executing external script (/home/leo/projects/lean/build/debug/shell/find.lua:24), no object name in the environment matches the regular expression 'foo'
find.lean:4:0: error: executing external script (/home/leo/projects/lean/build/debug/shell/find.lua:18), unfinished capture