Both are famously used in his arguments with converse of the principle, the indiscernibility of identicals [ described below ], which is logically distinct and not to be confused with the identity of indiscernibles .)
2.
These are propositions 1, 2, 8, 28, 31, 41, 52, 54, and 58 in the " Begriffschrifft " . ( 1 ) ( 3 ) govern indiscernibility of identicals, and ( 8 ) asserts that identity is a reflexive relation.