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From Chains of Reason

Chains > The physical world

Chain 34: The external world of the past can exist in the present.

Chain 42: The existence of a universe which is hospitable to humans, and life in general, can be explained without reference to a creation process which was biased towards creating that universe.

Chain 45: Something which is the product of a chain of cause and effect stretching infinitely back in time has an immediate cause, if not an initial cause.

Chain 46: Today's universe could be the product of an infinite chain of cause and effect and yet also be of a finite age.

Chain 49: It is possible that uncaused causation can occur naturally.

Chain 51: A real being is not greater than an imaginary being just because the latter lacks the reality of the former.

Chain 53: The greatest imaginable example of any particular category of things could still exist even if it does not exist in the universe.

Biology

Evolution by natural selection

Chain 3: Life on Earth evolved by natural selection.