What does Leana mean? Leana [leana] as a girls' name has its roots in Norman, Greek, English and French, and Leana means sun ray; to twine around. Leana is a variant form of Aileen (Norman): Scottish respelling of Eileen. Leana is also an Irish form of Helen (Greek).
From Wikipedia, the free encyclopedia. Formal balance, also called symmetrical balance, is a concept of aesthetic composition involving equal weight and importance on both sides of a composition. ^ J. Englebright Fox, Robert Schirrmacher. Art and Creative Development for Young Children (7 ed.). Cengage Learning, 2011.
Formal Logic: Formal Logic is what we think of as traditional logic or philosophical logic, namely the study of inference with purely formal and explicit content (i.e. it can be expressed as a particular application of a wholly abstract rule), such as the rules of formal logic that have come down to us from Aristotle.