(21steps total) PrintForm Definitions mb nat Sections MarkB generic Doc
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At: search property

  k:P:(k).
  ((i:kP(i))  0<search(k;P))
  & (0<search(k;P P(search(k;P)-1) & (j:kj<search(k;P)-1  P(j)))


By: Analyze 0 THEN NatInd 1


Generated subgoals:

1   P:(0). 
  ((i:0. P(i))  0<search(0;P))
  & (0<search(0;P P(search(0;P)-1) & (j:0. j<search(0;P)-1  P(j)))

1 step
2 1. k : 
2. 0<k
3. P:((k-1)). 
3. ((i:(k-1). P(i))  0<search(k-1;P))
3. & (0<search(k-1;P)
3. & (
3. & (P(search(k-1;P)-1) & (j:(k-1). j<search(k-1;P)-1  P(j)))
  P:(k). 
  ((i:kP(i))  0<search(k;P))
  & (0<search(k;P P(search(k;P)-1) & (j:kj<search(k;P)-1  P(j)))

19 steps

About:
boolassertnatural_numbersubtractless_thanapplyfunctionimpliesandallexists
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(21steps total) PrintForm Definitions mb nat Sections MarkB generic Doc