dual numbers[0] in lisp/lambda calculus context aka let a=lisp car and b-epsilon be lisp cdr. Then type of number/calculation can also be symbolic. Although,

dual numbers[0] in lisp/lambda calculus context aka let a=lisp car and b-epsilon be lisp cdr. Then type of number/calculation can also be symbolic. Although, per Lewis Caroll's concept of imaginary numbers with no concept of 'time', this doesn't quite work per functions/lists needing 'time to compute' a result. Guess why Lewis Carrol's 'turing' rabbit was always late. [0] : https://www.youtube.com/watch?v=ceaNqdHdqtg https://www.youtube.com/watch?v=ceaNqdHdqtg