spot the difference
(number theory) Pertaining to a Galois character φ, such that φ . (φ ◦ c) = 1, where c is the nontrivial element of Gal(K/Q), where K is an imaginary quadratic field.
plural of Kepler solid
plural of point-to-point
A type of puzzle in which the object is to find a certain number of minor differences between two pictures, usually printed side by side, that are otherwise identical.
先生は静かな読書の時間に、各生徒に間違い探しのパズルを渡しました。
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DiQt
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