wedge sum
(topology) A one-point union of a family of topological spaces.
Advice or exhortation, particularly of a moral or religious nature. / (rhetoric) A warning of impending evil.
plural of long row to hoe
plural of wood strawberry
2つの円のくさび和は八の字に同相で、基本群を計算する際の古典的な例を提供する。
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