HanoiTowers Sections NuprlLIB Doc
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Def  Inj(ABf) == a1,a2:Af(a1) = f(a2 B  a1 = a2

is mentioned by

Thm*  n:a,z:s:({a...z}{1...n}Peg).
Thm*  s is a Hanoi(n disk) seq on a..z
Thm*  
Thm*  (f:(PegPeg). 
Thm*  (Inj(Peg; Peg; f (x,if(s(x,i))) is a Hanoi(n disk) seq on a..z)
[hanoi_seq_permutepegs]
Thm*  p,r,q,s:Peg. p  q  r  s  Inj(Peg; Peg; permute(p to r ; q to s))[hanoi_peg_perm_is_inj]

In prior sections: fun 1

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HanoiTowers Sections NuprlLIB Doc