Hi,
Please check QtFuzzyLite to have an idea which TNorms and SNorms to use. The configuration requires case-sensitive names of the TNorms and SNorms. For example,
engine.configure("AlgebraicProduct", "AlgebraicSum", "AlgebraicProduct", "AlgebraicSum", "Centroid");
Please, also notice that you should group the conditions in the rules within parenthesis as I mentioned before:
if (chestpain is ASYMPTOMATIC or restpress is MAX or serum is MAXLEVEL) and (smoke is LOWPOSSIBILITY or sugar is LEVELNO or minrate is MINRATE or restrate is HIGHRATE) then angin is MASSIVE