Bivalence

DUAL MODE . Or adj bivalent even Diva Lenz , divalent (. Lat./gr) bivalence stands for:

• in chemistry the binding capacity of an atom or an ion of two, see valence (chemistry)
• in classical logic the basic principle true / false, see principle of two-valued
• in motor vehicles a drive that can be operated with two different fuels, see hybrid drive # Bivalent drives
• In heating technology systems that can use two different fuels, see building heating
• Bivalent (meiosis) , an arrangement of homologous chromosomes in groups of two during meiosis.

This is a disambiguation page for differentiating between several terms identified with the same word.