Nelson Goodman’s (1906-1998) argument that every inductive basis supports an infinite number of incompatible predictions: for instance, “all emeralds are green” versus “allemeralds are grue,” where grue means green now,…
A pair of propositions that cannot both be simultaneously true but can be simultaneously false. In categorical logic, A- and E-propositions are contraries. If one is true, the other must…
Two principles regarding identity and indiscernibility; namely, if two objects are identical,then every property of one is a property of the other (the indiscernibility of identicals); and,conversely, if two objects…