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Definitions
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Sections
AutomataTheory
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At:
hd
reverse
1
2
2
1.
T:
Type
2.
l:
T*
3.
u:
T
4.
v:
T*
5.
||v|| > 0
hd(rev(v)) = v[(||v||-1)]
6.
||v|| = 0
||u.v|| > 0
hd(rev(u.v)) = (u.v)[(||u.v||-1)]
By:
RWH (LemmaC
Thm*
a:T, as:T*, i:
. 0 < i
i
||as||
(a.as)[i] = as[(i-1)]) 0
Generated subgoal:
1
||u.v|| > 0
hd(rev(u.v)) = v[(||u.v||-1-1)]
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