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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
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Subject: Re: Contracts in generic formal subprogram
Date: Sat, 8 Apr 2023 10:02:31 +0200
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On 2023-04-08 09:00, mockturtle wrote:

> Should the actual subprogram specify the same contract? I am not sure (and I guess this could be a stumbling block for the adoption of this idea).

The general principle of substitutability is that the preconditions can 
be weakened, the postoconditions can be strengthened.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de