Non-classical logics are systems of reasoning that extend or modify traditional classical logic to address situations where classical principles may not apply. These logics include variations such as modal logic, which deals with necessity and possibility, and fuzzy logic, which allows for degrees of truth rather than a strict true/false dichotomy. These alternative logics are useful in fields like computer science, philosophy, and linguistics, where complex or ambiguous scenarios arise. By accommodating uncertainty, vagueness, and context, non-classical logics provide more flexible frameworks for understanding and analyzing reasoning processes.