…Also, for each element b in B , define a subset ⊿( b ) = { a ∈ A | Γ( a )∋b } of all elements a in A such that b ∈ Γ( a ), and you will obtain a correspondence ⊿ from B to A. This correspondence is called the inverse correspondence of Γ, and is represented by Γ -1 . (Γ -1 ) -1 = Γ. … *Some of the terminology explanations that mention "reverse correspondence" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,Bの各元bに,b∈Γ(a)であるようなAの元a全体のつくる部分集合⊿(b)={a∈A|Γ(a)∋b}を定めると,BからAへの対応⊿が得られる。この対応を,Γの逆対応といい,Γ-1で表す。(Γ-1)-1=Γである。… ※「逆対応」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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