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Each arm has a triangular panel inscribed in a triquetra (three-cornered knot) pattern. There is a small square panel in the center of the cross. A symbol of the Anglican and Episcopal Churches. Celtic Cross: Essentially a Greek or Latin cross, with a circle enclosing the intersection of the upright and crossbar, as in the standing High crosses.
Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...
The Square and Compasses (or, more correctly, a square and a set of compasses joined) is the single most identifiable symbol of Freemasonry. Both the square and compasses are architect 's tools and are used in Masonic ritual as emblems to teach symbolic lessons. Some Lodges and rituals explain these symbols as lessons in conduct: for example ...
Media controls on a multimedia keyboard. From top; left to right: skip backward, skip forward, stop, play/pause. Media control symbols are commonly found on both software and physical media players, remote controls, and multimedia keyboards. Their application is described in ISO/IEC 18035. [ 1]
propositional logic, Boolean algebra, first-order logic. ⊥ {\displaystyle \bot } denotes a proposition that is always false. The symbol ⊥ may also refer to perpendicular lines. The proposition. ⊥ ∧ P {\displaystyle \bot \wedge P} is always false since at least one of the two is unconditionally false. ∀.
Here's how Goto explains their meaning: the circle and x represent yes and no, respectively, the triangle symbolizes a point of view, and the square is equated to a sheet of paper, there to be ...
e. Squaring the circle is a problem in geometry first proposed in Greek mathematics. It is the challenge of constructing a square with the area of a given circle by using only a finite number of steps with a compass and straightedge. The difficulty of the problem raised the question of whether specified axioms of Euclidean geometry concerning ...
One logo features blue spiral-shaped triangle surrounded by a larger triangle, represents an pedophile who is attracted to boys. A variation of this logo features rounded corners to resemble a ...