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redoing parity lemmas

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2022-12-20 15:46:25 -08:00
parent a8d401864b
commit ca855fbad3
3 changed files with 131 additions and 17 deletions
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4
src/math/polysat/saturation.h
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@ -111,6 +111,10 @@ namespace polysat {
// p := coeff*x*y where coeff_x = coeff*x, x a variable
bool is_coeffxY(pdd const& coeff_x, pdd const& p, pdd& y);
// determine min/max parity of polynomial
unsigned min_parity(pdd const& p);
unsigned max_parity(pdd const& p);
bool is_forced_eq(pdd const& p, rational const& val);
bool is_forced_eq(pdd const& p, int i) { return is_forced_eq(p, rational(i)); }