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Newsgroups: comp.lang.ada
Date: Thu, 14 Jan 2021 07:28:58 -0800 (PST)
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Subject: Re: Lower bounds of Strings
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On Thursday, January 14, 2021 at 7:34:12 AM UTC-7, Dmitry A. Kazakov wrote:
 I do not see how a sequence is less a map position->element than 
> anything else. 
Oh, that's simple.
A sequence, at it's most abstract resembles a Stream.
Basically needing only a "Next"-function, "End_Error"-exception, and possibly a "Current"-function; assuming a one-element buffer.