By: |
Thm* i:, E:({...i}Prop). Thm* E(i) (k:{...i-1}. E(k+1) E(k)) (k:{...i}. E(k)) Using:[j | E(n):= in Dec(k:{n..j}. F(k))] |
1 |
Dec(k:{j..j}. F(k)) | 2 steps |
2 |
7. ik 8. Dec(k:{(k+1)..j}. F(k)) Dec(k:{k..j}. F(k)) | 1 step |
3 |
Dec(k:{i..j}. F(k)) | 1 step |
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