Redefining Arithmetic
Computer Science
Level
2
In the arithmetic of love, one plus one equals everything, and two minus one equals nothing.
-Mignon McLaughlin
What does the following expression in haskell evaluate to?
1 |
|
4
Error: 2+2 != 5
5
Error: Incorrect use of the let statement
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1 solution
Addition is just a binary operation. It works the way you define it!
In Haskell, you are allowed to overwrite the way + works like an ordinary function. In particular, this code defines 2+2 to be 5