[hist-analytic] Response to Danny Frederick

Bruce Aune aune at philos.umass.edu
Sat Aug 29 16:43:16 EDT 2009

Danny, What you now say "seems empty" (namely,  two determinate  
colours are the same just when no colour difference will be
detected when they are both observed under conditions where their true  
color is visually apparent to good observers) is all that I meant to  
assert, because the truth of "Nothing can have two different  
determinate colors at the same time" is inferable from this trivial  
truth (as I show in the little proof I give in a footnote).  The  
issues you raise in you last email have no bearing on the matters that  
concerned me.

Best, Bruce

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