[FOM] Why inclusive disjunction?

John Baldwin jbaldwin at uic.edu
Tue Jan 9 23:38:30 EST 2007

I am preparing to teach a course in `proof'.

Can anyone provide a principled reason for why logicians choose to
  interpret "or" as inclusive disjunction?

I understand that in the interpretations of statutes, the exclusive or
is the default.  So attorney's have made a different choice of 

John T. Baldwin
Director, Office of Mathematics Education
Department of Mathematics, Statistics, 
and Computer Science  M/C 249
jbaldwin at uic.edu
Room 327 Science and Engineering Offices (SEO)
851 S. Morgan
Chicago, IL 60607

Assistant to the director
Jan Nekola: 312-413-3750

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