At: auto2 lemma 6 1 1 1 1 1 2 1 1 1 1 1 2 2 1 2 1 1 1 1 1 1 1 1
1. n: 
2. 0 < n
3. T: Type
4. R: T
Prop
5. f: 
nT
6. Inj(n; T; f)
7. 
(
t:{t:T| t = f(n-1) }. R(t))
8. R(f(n-1))
9. t: T
10. R(t)
11. a: n
12. f(a) = t
False
By: Decide (a = n-1)
Generated subgoals:| 1 | 13. a = n-1  n
False |
| 2 | 13. a = n-1 n
False |
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