Leonardo de Moura
3e1fd06903
refactor(kernel/expr): remove 'null' expression, and operator bool for expression
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After this commit, a value of type 'expr' cannot be a reference to nullptr.
This commit also fixes several bugs due to the use of 'null' expressions.
TODO: do the same for kernel objects, sexprs, etc.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-07 23:21:10 -08:00
Leonardo de Moura
0390f3c39b
feat(library/tactic/boolean_tactics): avoid unnecessary Let expression in proof terms
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-06 15:01:54 -08:00
Soonho Kong
5c3866cd71
Use fullpath in #include directives, add missing STL headers
2013-09-13 03:35:29 -07:00
Leonardo de Moura
2459c4ae7c
Add (optional) type to let declarations
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-06 10:06:26 -07:00
Leonardo de Moura
984c4149fa
Add helper functions for creating Let expressions. Add simple type checking test for Let expressions.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-14 22:30:12 -07:00
Leonardo de Moura
3d9f9a12d1
Enable automatic coercion from 'char const *' to hierachical name
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-10 14:21:13 -07:00
Leonardo de Moura
84f4a32c0e
Change name convention for creating Lean expressions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-06 11:27:14 -07:00
Leonardo de Moura
30513398bb
Add basic definitions and axioms
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-05 20:06:42 -07:00
Leonardo de Moura
cce469119f
Flip order of the arguments for instance and abstract. Simplify type_checker.
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-03 16:12:15 -07:00
Leonardo de Moura
3ef9d21875
Fix bugs in type checker
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-01 21:40:39 -07:00
Leonardo de Moura
9b3c47a521
Refactor instantiate/abstract code
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-07-24 14:56:32 -07:00
