@neologist,
The word "proof" as applied to theories refers to
successful prediction (or post-diction) of observations. The word "fact," as argued elsewhere, refers to "a construction" or "directed observation". Thus both parts refer to
human activities (NOT
ontological statements) in which there is overwhelming confidence in the explanatory adequacy of the theory which directs them. In the case of "evolution" there is overwhelming support for Darwin's
paradigmatic explanation of his observations of species on the Galapalagos Islands, and its subsequent application elsewhere, in terms of his theory of evolution. The mistake theists make in their understandable antagonism to the term "proven fact" in this case, is a straw man attack on its hypothetical lose usage, in which the human act of directed observation is ignored. Their own directed acts of observation are conditioned and proscribed by their minority beliefs in the
existence a creator, i.e. an
ontological assumption of their own whose absolute status in their own mind they wrongly assume is ascribed to scientific statements about facticity. Unlike theists, most scientists are sophisticated enough to understand the functional and transient nature of their paradigms and to view statements about "absolute or eternal truths" as a psychological pot of gold wished for at the end of an imaginary rainbow.