Logical constant, a symbol in symbolic logic that has the same meaning in all models, such as the symbol "=" for "equals"
The Constant Gardener | Pierre-Constant Budin | The Constant Gardener (film) | Planck constant | André Marie Constant Duméril | Constant Permeke | Benjamin Constant | Constant Lambert | Saint-Constant, Quebec | Planck's constant | Marius Constant | Jean-Joseph Benjamin-Constant | Emmanuel Constant | Dissociation constant | Constant Pressure System | Man of Constant Sorrow | Faraday constant | Constant Vanden Stock Stadium | Constant Mews | Constant Lievens | Constant Chevillon | time constant | The Deacon's Masterpiece or, the Wonderful "One-hoss Shay": A Logical Story | Susan Constant | Stefan–Boltzmann constant | solar constant | Saint-Constant, Cantal | Saint-Constant | Robbins constant | Psycho+Logical-Records |