Re: empty permutation true/false

Kevin Ryde on Sat, 03 Mar 2018 05:16:59 +0100

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Re: empty permutation true/false

To: pari-users@pari.math.u-bordeaux.fr
Subject: Re: empty permutation true/false
From: Kevin Ryde <user42_kevin@yahoo.com.au>
Date: Sat, 03 Mar 2018 15:15:56 +1100
References: <87r2p9o8kr.fsf@blah.blah> <20180225102802.GV29789@yellowpig>

Bill Allombert <Bill.Allombert@math.u-bordeaux.fr> writes:
>
> if(perm===0,...)
> if you do not want to depend on that.

That could be ok.  Does it mean don't know yet for == and its friends.
I also thought a symbol like 'none, absent better idea.

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