I confess that the law seems tautological, trite, useless — Art48
Martin Heidegger . . . links the law of identity "A=A" to the Parmenides' fragment (....for the same thing can be thought and can exist). Heidegger thus understands identity starting from the relationship of Thinking and Being, and from the belonging-together of Thinking and Being. — Art48
Water is H2O
George Washington is (fill in your description)
9 is 4 + 5
Hesperus is Phosphorus — Richard B
What can be its significance? — Art48
For Spir the principle of identity is not only the fundamental law of knowledge, it is also an ontological principle, expression of the unconditioned essence of reality (Realität=Identität mit sich), which is opposed to the empirical reality (Wirklichkeit), which in turn is evolution (Geschehen).[26] The principle of identity displays the essence of reality: only that which is identical to itself is real, the empirical world is ever-changing, therefore it is not real. Thus the empirical world has an illusory character, because phenomena are ever-changing, and empirical reality is unknowable.
Look at how the subject of identity is handled in formal logic, philosophical logic, mathematical logic, set theory, and mathematics. Those clear up a lot of questions (though there are still some philosophical questions that arise). — TonesInDeepFreeze
Look at how the subject of identity is handled in formal logic, philosophical logic, mathematical logic, set theory, and mathematics. Those clear up a lot of questions (though there are still some philosophical questions that arise). — TonesInDeepFreeze
IdentityEquivalence of indiscernibles — Relativist
Identity of indiscernibles
— Relativist
Words matter! Mass-Energy/Acceleration-Gravity identity equivalence! — Agent Smith
The law of identity may be denied, as I believe Hegel did. But doing this renders the other laws of logic, noncontradiction, and excluded middle, as useless. This is because these laws put restrictions on what we can truthfully say about a thing, by determining what is impossible for us to truthfully say about a thing.
Hit the bullseye, you have! — Master Yoda
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