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「集合の公理系」ウェブページの誤記報告 #334

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KITAMI-Ken opened this issue Feb 24, 2021 · 0 comments

KITAMI-Ken commented Feb 24, 2021 •

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下記ウェブページの誤記報告です。

置換公理を確認しようと思ってgoogle検索したところ２番目にヒットしたので見てみたのですが、
論理式による表現に誤りが数か所あるようですので、確認をお願いいたします。

置換公理（Axiom of replacement） | ∀x[x∈a⇒∀y∀z(P(a,y)∧P(x,y)⇒y=z)]⇒∃b∀u[u∈b⇔∃x(x∈a∧P(x,y))]

https://ufcpp.net/study/math/set/axiom/

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