[m-users.] primes...

[Sean Charles (emacstheviking)]

In the reference_manual there is reference to a predicate on page 22...

Threading the I/O state
main(!IO) :-
io.write_string("The 100th prime is ", !IO),
X = prime(100),
io.write_int(X, !IO),
io.nl(!IO)

Is this really a library function somewhere? I've not been able to track it down. It would be handy, today I decided to start the long climb that is Project Euler using Mercury, I've done the first two, but since found the ranges module, noted for future use.

Thanks
Sean

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