[T]he philosophical presuppositions of science [include]: the existence of a theory independent, external world; the knowability of the external world; the existence of truth; the laws of logic; the reliability of our cognitive and sensory faculties to serve as truth gatherers and as a source of justified beliefs in our intellectual environment; the adequacy of language to describe the world; the existence of values used in science; the uniformity of nature and induction; and, the existence of numbers and mathematical truths.