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2015-12-15Proof using: do not clear unused section hyps automaticallyEnrico Tassi
The option is still there, but not documented since it is too dangerous. Hints and type classes instances are not taking cleared variables into account.
2015-10-08Proof using: let-in policy, optional auto-clear, forward closure*Enrico Tassi
- "Proof using p*" means: use p and any section var about p. - Simplify the grammar/parser for proof using <expression>. - Section variables with a body (let-in) are pulled in automatically since they are safe to be used (add no extra quantification) - automatic clear of "unused" section variables made optional: Set Proof Using Clear Unused. since clearing section hypotheses does not "always work" (e.g. hint databases are not really cleaned) - term_typing: trigger a "suggest proof using" message also for Let theorems.
2015-03-11admit: replaced by give_up + Admitted (no proof_admitted : False, close #4032)Enrico Tassi
- no more inconsistent Axiom in the Prelude - STM can now process Admitted proofs asynchronously - the quick chain can stock "Admitted" jobs in .vio files - the vio2vo step checks the jobs but does not stock the result in the opaque tables (they have no slot) - Admitted emits a warning if the proof is complete - Admitted uses the (partial) proof term to infer section variables used (if not given with Proof using), like for Qed - test-suite: extra line Require TestSuite.admit to each file making use of admit - test-suite/_CoqProject: to pass to CoqIDE and PG the right -Q flag to find TestSuite.admit
2014-12-19Better doc and a few fixes for Proof using.Enrico Tassi
2014-12-18Proof using: New vernacular to name sets of section variablesEnrico Tassi
2012-06-18Proof using: nested sections bugfixgareuselesinge
It used to be the case that the list of declared section variables for a constant was taken into account only when discharging the first enclosing sections, but not any outer section. Example of the bug: Section A. Variable x : bool. Section B. Variable y : nat. Lemma foo : True. Proof using x y. Admitted. End B. End A. Check foo. (* nat -> True instead of bool -> nat -> True *) git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15445 85f007b7-540e-0410-9357-904b9bb8a0f7
2011-12-12Proof using ...gareuselesinge
New vernacular "Proof using idlist" to declare the variables to be discharged at the end of the current proof. The system checks that the set of declared variables is a superset of the set of actually used variables. It can be combined in a single line with "Proof with": Proof with .. using .. Proof using .. with .. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14789 85f007b7-540e-0410-9357-904b9bb8a0f7