Quantum Mechanics (in the context of logical equivalence)

Quantum mechanics is the branch of physics describing how particles behave at very small scales, like atoms and electrons. In terms of logical equivalence, it suggests that particles can exist in multiple states simultaneously (superposition), and only settle into a specific state when observed. This means that certain properties are fundamentally linked; knowing one can tell you about the other (entanglement). It challenges classical notions of definite states and introduces probabilities, where outcomes are not fixed until measured—highlighting a kind of logical relationship where potential states become actual upon observation.