[x] Show that for any type, there is 1-combinator between it and its normalized version
[ ] Show that for any two types t1 and t2 and a 1-combinator c between them, there exists a normalized 1-combinator nc and a 2-combinator nnc such that the (obvious) diagram commutes up to nnc.
To do:
(1 + (1 + ... + (1 + 0)))
and normalized 1-combinatorst1
andt2
and a 1-combinatorc
between them, there exists a normalized 1-combinatornc
and a 2-combinatornnc
such that the (obvious) diagram commutes up tonnc
.