 in the logic of science here outlined it is possible to avoid using the concepts “true” and “false” … We need not say that the theory is “false” [or “falsified”], but we may say instead that it is contradicted by a certain set of accepted basic statements. Nor need we say of basic statements that they are “true” or “false”, for we may interpret their acceptance as the result of a conventional decision, and the accepted statements as results of this decision. (LSD: 273–274.)