Dirk Laurie on Tue, 08 Jul 2014 10:28:33 +0200

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Re: concat([])

2014-07-08 9:13 GMT+02:00 Karim Belabas <Karim.Belabas@math.u-bordeaux.fr>:

> No. The semantics of "==" is fuzzy (because it must apply to all pairs
> of PARI objects and decide whether they should be "mathematically"
> equal, which leaves plenty of room for ambiguities and abuse),

I'd go so far as to say that understanding what "x==y" means is the
hardest step, causing the most logical bugs, in the transition from
any previous language you knew (except maybe APL) to Pari/GP.