:: deftheorem Def10 defines FSDMinDigit RADIX_6:def 10 :
for i, m, k being Nat st k >= 2 holds
( ( i > m implies FSDMinDigit (m,k,i) = 0 ) & ( i = m implies FSDMinDigit (m,k,i) = 1 ) & ( not i > m & not i = m implies FSDMinDigit (m,k,i) = (- (Radix k)) + 1 ) );