FStarLang / FStarLang/pulse

Trouble with dependent tuples

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Description

Dependent types of tuple elements makes proving props about tuple elements tricky. Workaround is to use records instead of tuples, but they should ideally behave the same.

See https://github.com/FStarLang/steel/blob/megan_dpe/share/steel/examples/pulse/bug-reports/DependentTuples.fst

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Research direction

Start with share/steel/examples/pulse/bug-reports/DependentTuples.fst and reproduce the dependent-tuple proof failure described there. Compare its behavior with the equivalent record-based proof; done means dependent tuple elements support the intended property proofs without requiring records.

Written by the indexing model from the issue text.

Assessment

Domain
compilers
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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