Metaphysical Foundationalism and the Principle of Sufficient Reason

Abstract There is a ubiquitous claim in the grounding literature that metaphysical foundationalism violates principle of sufficient reason (PSR) virtue positing level ungrounded facts. I argue foundationalists can accept PSR if they are willing to replace fundamentality as independence with completeness and deny ground strict partial order. The upshot be compatible both infinitism, so presupposing this fixed explanatory demand need not beg question favour either view.