Philosophy was the only field where I learned formal logic at all. I went into higher math, did some CS, and also got a law degree[1], and am now doing a Ph.D.

Philosophy was the only field where I learned formal logic at all. I went into higher math, did some CS, and also got a law degree[1], and am now doing a Ph.D. in informatics, and still the only place I have really been exposed to formal logic was my undergrad degree in philosophy. [1] It is amazing (or not, depending on your view of lawyers) that lawyers are basically not taught anything about making and proving formal arguments, at least in my experience.