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RE: [Coq-Club] Non shortcut OR chaining of tactics

From: "Soegtrop, Michael" <michael.soegtrop AT intel.com>
To: "coq-club AT inria.fr" <coq-club AT inria.fr>
Subject: RE: [Coq-Club] Non shortcut OR chaining of tactics
Date: Mon, 21 Nov 2016 18:04:32 +0000
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please ignore my previous mail – it is easy to write a tactic notation for this.

Best regards,

Michael

From: coq-club-request AT inria.fr [mailto:coq-club-request AT inria.fr] On Behalf Of Soegtrop, Michael
Sent: Monday, November 21, 2016 6:57 PM
To: coq-club AT inria.fr
Subject: [Coq-Club] Non shortcut OR chaining of tactics

Dear Coq Users,

is there an operator which chains tactics such that all tactics which don’t fail are executed one after another and the chain succeeds if at least one tactic in the chain succeeded? The tactics don’t create new goals or change the goal, the just create new hypothesis. This would be similar to the || operator, except that it doesn’t stop after the first successful tactic.

My application is extensible forwarding using the tactic notation / Ltac ::= trick Jonathan suggested. This works with ||, but it adds a quadratic (with number of tactics chained) overhead when repeated until failure.

Thanks & Best regards,

Michael

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[Coq-Club] Non shortcut OR chaining of tactics, Soegtrop, Michael, 11/21/2016
- RE: [Coq-Club] Non shortcut OR chaining of tactics, Soegtrop, Michael, 11/21/2016