Why is logic valid? | Page 2 | INFJ Forum

Why is logic valid?

I'd also like to note that there are many different systems of logic. Most of my studies have been in the domain of deductive logical systems, including classical logic (what most people think when they use the term 'logic'), but also multi-valued logics such as those with 1/2 truth-values (so a third truth-value in addition to T and F), and modal logic, the logical system which uses Kripke's 'possible worlds semantics' to describe the metaphysical relationships between various concepts used in philosophical theories or hypotheses.

I love logic, I find it extremely beautiful, but I'm also not ruled by it. I use it to provide coherent but closed systems of rationalizations for the inner episodes I perceive.

What I find even more beautiful than logic, such that it may be more appropriate to call it a feeling of sublimity, is paradox that results from logical investigations. Paradoxes are, for me, something deeply-related to the 'Absolute' -- what Spinoza would call God.