Sucrose found in a fruit and sucrose used to bake a cake are identical. All have the same calorific values (4 kcal/ 17 kJ of energy per gram). The body does not distinguish between sugars used in manufactured food and drinks or in the home, and those found naturally in foods.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  maxim, axiom(noun) a saying that is widely accepted on its own merits. 2  axiom(noun) (logic) a proposition that is not susceptible of proof or disproof; its truth is assumed to be self-evident.
Construct a truth table for the formula . A tautology is a formula which is always true --- that is, it is true for every assignment of truth values to its simple components. You can think of a tautology as a rule of logic. The opposite of a tautology is a contradiction, a formula which is always false. In other words, a contradiction is false for every assignment of truth values to its simple components. Example.