On 10/19/2013 6:34 AM, Peter Percival wrote: > Hetware wrote: > >> If we define f(x) as >> >> f(x) = x/x and c[f(x)], > > That's cheating. You've been told at least eight million times that you > may define f with a formula, but you cannot put "and c[f(x)]" in the > definition. If c[f(x)] is true it has to be proved _from_ the definition. >
Do the advertisements in your corner of the world include the Energizer bunny?