[Discussion with an reader on mono- vs. polygenism] + [Adam & Eve] + [facebook queries] + [helpful friends] leads me to a fascinating post by Michael Flynn on the whole question. Excerpt:
…[They] appear to hold that the statement:
A: “There is one man from whom all humans are descended”
is equivalent to the statement:
B: “All humans are descended from [only] one man.”
But this logical fallacy hinges on an equivocation of “one,” failing to distinguish “one [out of many]” from “[only] one.” Traditional doctrine requires only A, not B: That all humans share a common ancestor, not that they have no other ancestors.
Read the whole thing here!