zero(f)(x) = x; one(f)(x) = f(x); two(f)(x) = one(f)(one(f)(x)) = one(f)(f(x)) = f(f(x)); three(f)(x) = two(f)(one(f)(x)) = two(f)(f(x)) = f(f(f(x))); ... five(f)(x) = f(f(f(f(f(x)))));
老哥牛批,看了这个恍然大悟
原来如此!!!
老哥厉害~!
牛牛牛!!!
一看就是老 lisp--er 了
一股数学的味儿~
数学的味道~!
牛逼呀,套娃的感觉,大致明白了
特地登录,老哥牛逼
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