intuitionistic calculus

Intuitionistic calculus is a form of mathematical logic that emphasizes constructive reasoning. Unlike classical logic, which accepts statements as true even without proof, intuitionistic logic requires that to prove something exists, you must explicitly construct it. Similarly, to affirm a statement, you need a clear method or evidence for its truth. This approach aligns with a constructive view of mathematics, focusing on what can be explicitly demonstrated, and it avoids principles like the law of excluded middle, which states that a statement is either true or false without proof.