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If we let x denote the tree (1 2 3), then the car of x is 1, the cdr of x is (2 3), the cadr of x is 2, the caddr of x is 3, and the cdddr of x is nil.
Wikipedia foundation.
If we let x denote the tree (1 2 3), then the car of x is 1, the cdr of x is (2 3), the cadr of x is 2, the caddr of x is 3, and the cdddr of x is nil.
Wikipedia foundation.
Hygienic macro — Hygienic macros are macros whose expansion is guaranteed not to cause collisions with existing symbol definitions. They are a feature of programming languages such as Scheme and Dylan. Contents 1 The hygiene problem 2 Strategies 3 Hygienic macro… … Wikipedia
cadr — noun /ˈkɑːdə,ˈkɑdɚ/ Car of the cdr in LISP. The second element in a list. If we let x denote the tree (1 2 3), then the car of x is 1, the cdr of x is (2 3), the cadr of x is 2, the caddr of x is 3, and the cdddr of x is nil. See Also: car, cdr,… … Wiktionary