By: |
Thm* P:(Prop). Thm* (a:, b:{...a}. P(a,b)) Thm* Thm* (a:, b:{a+1...}. (c:{a..b}. P(a,c)) P(a,b)) (a,b:. P(a,b)) |
1 |
5. b : {...a} 6. e : {a..b}A 7. k : (Iter(f;u) i:{a..b}. e(i)) = (Iter(f;u) j:{a+k..b+k}. e(j-k)) | 1 step |
2 |
5. b : {a+1...} 6. c:{a..b}, e:({a..c}A), k:. 6. (Iter(f;u) i:{a..c}. e(i)) = (Iter(f;u) j:{a+k..c+k}. e(j-k)) 7. e : {a..b}A 8. k : (Iter(f;u) i:{a..b}. e(i)) = (Iter(f;u) j:{a+k..b+k}. e(j-k)) | 4 steps |
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