(41steps total) PrintForm Definitions Lemmas graph 1 2 Sections Graphs Doc

At: Ramsey 2 1 2 2 2 1 2

1. k:
2. 0 < k
3. 0 < k-1 (L: List. 0 < ||L|| (r:. r- > L^k-1))
4. k = 1
5. 0 < k
6. d:
7. d1:. d1 < d (L: List. sum(L[i] | i < ||L||) = d1 0 < ||L|| (r:. r- > L^k))
8. L: List
9. sum(L[i] | i < ||L||) = d
10. 0 < ||L||
11. (i:||L||. L[i] < k)
12. i:||L||. 2L[i]
13. L: List. sum(L[i] | i < ||L||) = d-1 0 < ||L|| (r:. r- > L^k)
14. i: ||L||
sum(L[i--][i@0] | i@0 < ||L[i--]||) = d-1

By: Subst' (||L[i--]|| = ||L||) 0

Generated subgoals:

1 0 < L[i]1 step
 
2 ||L[i--]|| = ||L|| 2 steps
 
3 sum(L[i--][i@0] | i@0 < ||L||) = d-1 8 steps

About:
listintnatural_numbersubtractless_thanequalimpliesallexists

(41steps total) PrintForm Definitions Lemmas graph 1 2 Sections Graphs Doc