疑難雜症萬事通
在網路上遇到任何問題都可以在這邊找找看唷

Search

您即將離開本站

並前往 https://math.libretexts.org/Bookshelves/Mathematical_Logic_and_Proof/Book%3A_Mathematical_Reasoning__Writing_and_Proof_(Sundstrom)/01%3A_Introduction_to_Writing_Proofs_in_Mathematics/1.01%3A_Statements_and_Conditional_Statements

是否確定要離開?