id : Π {A}, A → A
id₂ : Π {A}, A → A
foo1 : A → B → A
foo2 : A → B → A
foo3 : A → B → A
foo4 : A → B → A
foo1 : Π {A} {B}, A → B → A
foo2 : Π {A} B, A → B → A
foo3 : Π A {B}, A → B → A
foo4 : Π A B, A → B → A
boo1 : Π {A} {B}, A → B → A
boo2 : Π {A} B, A → B → A
boo3 : Π A {B}, A → B → A
boo4 : Π A B, A → B → A
param_binder_update.lean:70:12: error: invalid parameter binder type update, 'A' is a variable
param_binder_update.lean:71:11: error: invalid variable binder type update, 'C' is not a variable
param_binder_update.lean:72:12: error: invalid variable binder type update, 'C' is not a variable
param_binder_update.lean:73:12: error: invalid variable binder type update, 'C' is not a variable
param_binder_update.lean:77:12: error: invalid parameter binder type update, 'id3' is not a parameter
param_binder_update.lean:81:12: error: invalid variable binder type update, 'C' is not a variable