What does assertion mean?

assertion meaning in General Dictionary

The act of asserting or whatever is asserted positive declaration or averment affirmation statement asserted place advanced

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  • a declaration this is certainly made emphatically (as if no supporting evidence were required)
  • the work of affirming or asserting or saying something
  • The work of asserting, or that which is asserted; good statement or averment; affirmation; declaration asserted; place advanced level.
  • Maintenance; vindication; since, the assertion of one's legal rights or prerogatives.

assertion meaning in Etymology Dictionary

very early 15c., assercioun, from Middle French assertion (14c.) or directly from belated Latin assertionem (nominative assertio), noun of action from previous participle stem of Latin asserere "claim legal rights over something, condition, keep, affirm," from ad- "to" (see ad-) + serere "join" (identify show). By "joining yourself" to a particular view, one "claimed" or "maintained" it.

assertion - German to English


assertion meaning in Philosophy Dictionary

Frege introduced the assertion sign, in 1879, as a means of indicating the difference between asserting a proposition as true and merely naming a proposition (e.g., in order to make an assertion about it, that it has such and such consequences, or the like). Thus, with an appropriate expression A, the notation |−A would be used to make the assertion, "The unlike magnetic poles attract one another," while the notation −A would correspond rather to the noun clause, "that the unlike magnetic poles attract one another." Later Frege adopted the usage that propositional expressions (as noun clauses) are proper names of truth values and modified his use of the assertion sign accordingly, employing say A (or −A) to denote the truth value thereof that the unlike magnetic poles attract one another and |−A to express the assertion that this truth value is truth. The assertion sign was adopted by Russell, and by Whitehead and Russell in Principia Mathematica, in approximately Frege's sense of 1879, and it is from this source that it has come into general use. Some recent writers omit the assertion sign, either as understood, or on the ground that the Frege-Russell distinction between asserted and unasserted propositions is illusory. Others use the assertion sign in a syntactical sense, to express that a formula is a theorem of a logistic system (q.v.); this usage differs from that of Frege and Russell in that the latter requires the assertion sign to be followed by a formula denoting a proposition, or a truth value, while the former requires it to be followed by the syntactical name of such a formula. In the propositional calculus, the name law of assertion is given to the theorem: p ⊃ [[p ⊃ q] &sup q]. (The associated form of inference from A and A ⊃ B to B is, however, known rather as modus ponens.) -- A.C. The act of declaring a proposition or propositional form to be true (or to be necessarily true, or to be a part of a system).

assertion meaning in General Dictionary

(letter.) The work of asserting, or that which is asserted; good declaration or averment; affirmation; declaration asserted; position advanced.

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  • (letter.) repair; vindication; since, the assertion of your respective rights or prerogatives.

Sentence Examples with the word assertion

Those in Africa) he found it expedient to abstain from any obtrusive assertion of Roman claims. But of his general principle there can be no doubt.

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