IUCompilerCourse / public-student-support-code

Public helper code for p423/p523 students (Racket)
MIT License
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Add subtraction #12

Open arsdragonfly opened 2 years ago

arsdragonfly commented 2 years ago

Introduces another pe-sub instead, because (- (read) (read)) being partially evaluated to (+ (read) (- (read))) would cause confusion. Will open a PR for the book later.