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Given a rank-''r'' temperament ''W'' and a comma ''m'' not tempered out by ''W'', the '''interior product''' of ''W'' and ''m'' is the rank-(''r''-1) temperament which tempers out ''m'' in addition to all the commas that are tempered out by ''W'' (thus its [[Rank and codimension|codimension]] is one dimension higher than that of ''W''). | Given a rank-''r'' temperament ''W'' and a comma ''m'' not tempered out by ''W'', the '''interior product''' of ''W'' and ''m'' is the rank-(''r''-1) temperament ''W'' ∨ ''m'' which tempers out ''m'' in addition to all the commas that are tempered out by ''W'' (thus its [[Rank and codimension|codimension]] is one dimension higher than that of ''W''). | ||
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