
theorem Th95:
Sum digits(24,10) = 6
proof
  thus Sum digits(24,10) = Sum <%4%>+Sum <%2%> by Th94,AFINSQ_2:55
  .= 4 + Sum <%2%> by AFINSQ_2:53
  .= 4+2 by AFINSQ_2:53
  .= 6;
end;
