Full Idea
Peirce takes bivalence not to be a law of logic, but a regulative assumption of enquiry.
Gist of Idea
Bivalence is a regulative assumption of enquiry - not a law of logic
Source
report of Charles Sanders Peirce (works [1892]) by Cheryl Misak - Pragmatism and Deflationism 2 n10
Book Reference
'New Pragmatists', ed/tr. Misak,Cheryl [OUP 2009], p.75
A Reaction
I like this. For most enquiries it's either true or not true, it's either there or it's not there. When you aren't faced with these simple dichotomies (in history, or quantum mechanics) you can relax, and allow truth value gaps etc.