#1: only propositions hold a logic value (true or false). Interrogations e.g. are not propositions.
#2: a proposition both true AND false is always false (no contradiction)
#3: a proposition that is true OR false is always true. ( the excluded middle)
After that you only need to make the construct.
You should try to discipline your thoughts by these 3 axioms. These are the laws of thought. The basis of logic.
#2: a proposition both true AND false is always false (no contradiction)
#3: a proposition that is true OR false is always true. ( the excluded middle)
After that you only need to make the construct.
You should try to discipline your thoughts by these 3 axioms. These are the laws of thought. The basis of logic.