User talk:C7X

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Collection doesn't follow from replacement when powerset is absent [1], you need to watch your mouth! C7X (talk) 01:11, 16 August 2021 (PDT)


It seems like we're the only people active here. :D Binary198 (talk) 01:52, 2 May 2022 (PDT)

Hi! BartekChom edits here as well C7X (talk) 12:39, 2 May 2022 (PDT)