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symmetry, balance, correspondence, symmetricalness | [in mathematics] an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane | |
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correspondence, commensurateness, proportionateness | the relation of corresponding in degree or size or amount | |
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correspondence | communication by the exchange of letters | |
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agreement, correspondence | compatibility of observations | |
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parallelism, correspondence | similarity by virtue of corresponding |