presuppose

Assume from start

To presuppose something is to assume it beforehand as a basis for argument or action.

The question Have you stopped cheating? presupposes that you were cheating.

Presuppose often appears in philosophical and logical contexts, where unstated assumptions shape conclusions.

A related sense means to require as a precondition: Democracy presupposes an informed citizenry.

logic

premise

Foundation for logical argument

axiom · syllogism · inference · deduction · argument · reasoning · conditional · necessary condition · antecedent

assume

assume

Accept as true

conjecture · surmise · posit · take for granted · infer · deduce · speculate · theorize · expect · anticipate

precondition

prerequisite

Required prior condition

antecedent · given · axiom · stipulation · necessity · basis · proviso · predicate · condition · foundation

implicit

tacit

Understood without words

unstated · unexamined · hidden · latent · inherent · embedded · subtext · assumption · implication · undercurrent

Opposites
epistemic assumption vs. demonstration

presupposeprove

Establish as fact

demonstrate · establish · verify · confirm · substantiate

acceptance vs. rejection of premises

presupposequestion

Request for information

doubt · challenge · deny · reject · refute

prior assumption vs. subsequent verification

presupposeconclude

End or infer

deduce · infer · determine · ascertain · discover

Family

presupposition, presupposed, presupposing, presupposes, presuppositions

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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G