*
* Virtual method redefined from base class verifies whether given operator is valid for
* this one (i.e. can be started "above" this operator). In current implementation method
-* retuns false if theOtherOp operation is not intended for deleting objects or mesh
+* returns false if theOtherOp operation is not intended for deleting objects or mesh
* elements.
*/
bool SMESHGUI_Operation::isValid( SUIT_Operation* theOtherOp ) const