Any good options? Thinking of open university
>Combinatorics, Graph Theory, Number Theory, Num Analysis, DIFFERENTIAL GEOMETRY, PROBABILITY, ALL BEFORE ANALYSIS THIS IS RETARDED HOLY SHIT
First intro to proofs (How to Prove it, a Structured Approach), Linear Algebra (Hoffman&Kunze) and Real Analysis (Terence Tao I & II) together are core. Then abstract algebra (Rotman's first course or Artin's classic), then post again asking for advice.
>How to Prove It
>not pic related
kill urself my man
Also, you can do combinatorics right after proofs. Otherwise, I agree. Calculus is a half-asses substitute for the full thing.
>DIFFERENTIAL GEOMETRY, PROBABILITY, ALL BEFORE ANALYSIS THIS IS RETARDED HOLY SHIT
Elementary Differential Geometry in 2D/3D (curves and surfaces) requires next to no analysis and it's good for learning intuition when you get to the more abstract general stuff.
There is a level of probability above the worthless business major shit and below measure theory of total measure 1 called "undergrad probability".