“…Furthermore this discussion has reinforced the views of some previous researchers, for example (Amirali & Halai, 2010;Beswick, 2012;Ernest, 1989;Felbrich, Kaiser, & Schmotz, 2012;Muhtarom, Juniati, & Siswono, 2017a;Siswono, Kohar, & Hartono, 2017;Thompson, 1992). Instrumentalist beliefs believe that mathematics is a set of tools made of a set of facts, rules that are not interrelated but useful (Ernest, 1989); mathematics is such as the set of unrelated but useful rules and facts (Muhtarom, Juniati, & Siswono, 2017a).…”