COPULA • DICTIONARY ONE.COM • Definition of Copula

... it may be supplied with matter, as in "Every man is animal." The logicians will not see that their formal proposition, "Every X is Y," is material in three points, the degree of assertion, the quantity of the proposition, and the copula. The purely formal proposition is "There is the probability [alpha] that X stands in the relation L to Y." The time will come when it will be regretted that logic went without paradoxers for two thousand years: and when much that has been said on the distinction ...

— A Budget of Paradoxes, Volume I (of II) • Augustus De Morgan

... subjects! We hereby nominate our faithful charger Copula Felix hereditary Grand Vizier and announce that we have this day repudiated our former spouse and have bestowed our royal hand upon the princess Selene, the ...

— Ulysses • James Joyce