File "stdin", line 12, characters 0-61: Warning: Notation _ - _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ <= _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ < _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ >= _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ > _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ <= _ <= _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ < _ <= _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ <= _ < _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ < _ < _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ + _ was already used in scope nat_scope. [notation-overridden,parsing] File "stdin", line 12, characters 0-61: Warning: Notation _ * _ was already used in scope nat_scope. [notation-overridden,parsing] BEGIN INSTANCES instance: (x + y + z) matches: (x + y + z) instance: (x + y) matches: (x + y) instance: (x + y) matches: (x + y) END INSTANCES BEGIN INSTANCES instance: (addnC (x + y) z) matches: (x + y + z) instance: (addnC x y) matches: (x + y) instance: (addnC x y) matches: (x + y) END INSTANCES BEGIN INSTANCES instance: (addnA x y z) matches: (x + y + z) END INSTANCES BEGIN INSTANCES instance: (addnA x y z) matches: (x + y + z) instance: (addnC z (x + y)) matches: (x + y + z) instance: (addnC y x) matches: (x + y) instance: (addnC y x) matches: (x + y) END INSTANCES The command has indeed failed with message: Ltac call to "ssrinstancesoftpat (cpattern)" failed. Not supported