In propositional logic, a tautology is a formula re which the negation thereof (e.g., "Life is not life") is a contradiction. So, yes--with the caveat that your statement is given as "life is life;" if one distinguishes between "Being and existence, Life and life," then, no, as your statement would thus imply the possibility of first-order logical quantification: there are many existences (as given by existential quantifier), but one Being or Life (as universal quantifier) a la Plotinus' "One Mind Soul."