Several users are seeking websites that explain mathematical symbols and terms, with suggestions including MathWorld and the Collins Dictionary of Mathematics. Additional resources shared include TechTarget's definition page and GoMath's algebra symbols page. A discussion arises about the notation for "there does not exist," with users clarifying that the standard symbol for "there exists" is "∃" and discussing its negation. The conversation touches on the use of symbols in mathematical notation, emphasizing clarity in communication. Overall, the thread provides useful resources and insights into mathematical symbolism.