Full Idea
If you reject the principle of bivalence (that a proposition is either determinately true or false), then statements are also not subject to the Law of Excluded Middle (P or not-P).
Gist of Idea
If bivalence is rejected, then excluded middle must also be rejected
Source
Mark Rowlands (Externalism [2003], Ch.3)
Book Reference
Rowlands,Mark: 'Externalism' [Acumen 2003], p.52
A Reaction
I think Rowlands is wrong about this. Excluded Middle could be purely syntacti, or its semantics could be 'True or Not-True'. Only bivalent excluded middle introduces 'True or False'. Compare Idea 4752.
Related Ideas
Idea 4752 Deflationism must reduce bivalence ('p is true or false') to excluded middle ('p or not-p') [Engel]
Idea 9024 Excluded middle has three different definitions [Quine]