2 | 5. c: ||L|| 6. f:( L[c]  n). increasing(f;L[c]) & ( s: L[c]. G([(f(s))]) = c) 7. c1: ||L|| 8. f: L[c1]  n 9. increasing(f;L[c1]) 10. s: L[c1] List 11. ||s|| = 1  12. x,y: ||s||. x < y  s[x] < s[y] map(f;s) {s:( n List)| ||s|| = 1 & ( x,y: ||s||. x < y  s[x] < s[y]) } | 1 step |