free variables English placeholder Both are correct. bound bound variable free variables English free variables placeholder bound variables free variables free variables free variable free variables free variables free variable placeholder placeholder placeholder binds free variables English free variables English free variables free variables Both are correct. free variables free variables English binds free variables free and bound variables free variables free variables free variables free variables free variables Both are correct. formal definition free variables binds free variables free variables free variable English free variables free variable free free variable dummy variable English free variables free variables free variables free variables capturar las variables English free variables free free variables placeholder free variable free variable placeholder bound placeholder free variables English free Free Variable free variables free variables English Free_variables_and_bound_variables placeholder free variables free variables placeholder bound variable free variables free