I’m not sure what “exist” means in this context. IMO, logic is a somewhat ambiguous word, but the common use is for a particularly powerful base model (that is, a meta-model that can be extended in many directions to make predictions). It doesn’t exist any more (nor any less) than “thermodynamics” or “love” exists—these are concepts that can be used to communicate and predict states of the universe, but don’t directly correspond to a state of the universe.
Actually, for the question of existence, the power and applicability of the model doesn’t matter. it exists in the same sense as bad models exist, too. It’s an idea, or pattern of processing inside a brain.
I’m not sure what “exist” means in this context. IMO, logic is a somewhat ambiguous word, but the common use is for a particularly powerful base model (that is, a meta-model that can be extended in many directions to make predictions). It doesn’t exist any more (nor any less) than “thermodynamics” or “love” exists—these are concepts that can be used to communicate and predict states of the universe, but don’t directly correspond to a state of the universe.
Actually, for the question of existence, the power and applicability of the model doesn’t matter. it exists in the same sense as bad models exist, too. It’s an idea, or pattern of processing inside a brain.