 There is, as we have seen, an issue as to whether facts are complex entities or not, and as to how (if at all) the various facts are composed and as to what composition means here. (This question is not always independent of the question whether propositions are complex. This is obvious if facts are taken to be true propositions. But even if the identification is rejected, it may nevertheless be maintained that facts share important features with propositions. On propositional complexity, see the entries on  singular propositions  and  structured propositions.)