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Re:Ask HN: Serious mathematics books that can replace a good... by garmain on Tuesday May 24, 2022 @03:50AM (#31489204)
Seconded. also consider Lockhart's "Arithmetic". Bear in mind. These are both non-orthodox style books. Burn Math Class least orthodox.

An orthodox approach to Analysis would be Terence Tao's Analysis books.

Further recommendations depend on your specific goals.

Re:Ask HN: Serious mathematics books that can replace a good... by havercosine on Wednesday May 25, 2022 @10:31AM (#31505086)
Lockhart wrote another book, called measurement, with a different scope. It covers Geometry and Calculus in his whimsical style. It can give you many aha moments.