Rank 3 scale: Difference between revisions
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'''Theorem:''' Scales of the form a...ba...c have mean variety (3''N''-4)/(''N''-1) | '''Theorem:''' Scales of the form a...ba...c have mean variety (3''N''-4)/(''N''-1) | ||
'''Proof:''' | |||
Since there are three step sizes, a,b, and c, interval class ''N'' has variety 3 | Since there are three step sizes, a,b, and c, interval class ''N'' has variety 3 | ||