Of which many that don't make it because they've had some early bad experience rather than actually being unable to. And there is a parallel for those with some

Of which many that don't make it because they've had some early bad experience rather than actually being unable to. And there is a parallel for those with some basic mastery of algebra and calculus and have some mental block towards stats. To quote pg, many conversations on the Internet: Person 1: ∃x P(x) Person 2: -(∀x P(x))!