Definition of "consistent"

That author [Mr. Boyle] has a particular Eſſay of the Atmoſphere of Conſiſtent Bodies; wherein he ſhews, that all, even ſolid, hard, ponderous, and fix'd Bodies, do exhale or emit Effluvia to a certain space all around 'em.

1728, E[phraim] Chambers, “Consistent Bodies”, in Cyclopædia: Or, An Universal Dictionary of Arts and Sciences; […] In Two Volumes, volumes I (A–H), London: […] James and John Knapton [et al.], page 309, column 2

When a philosopher adopted fully the Nominalist view of the signification of general language, retaining along with it the dictum de omni as the foundation of all reasoning, two such premisses fairly put together were likely, if he was a consistent thinker, to land him in rather startling conclusions.

1843, John Stuart Mill, “Of Ratiocination, or Syllogism”, in A System of Logic, Ratiocinative and Inductive, being a Connected View of the Principles of Evidence, and the Methods of Scientific Investigation. […], volume I, London: John W[illiam] Parker, […], § 2, page 237

As I had once done thus in my breaking away from my Parents, ſo I could not be content now, but I must go and leave the happy View I had of being a rich and thriving Man in my new Plantation, only to purſue a raſh and immoderate Deſire of riſing faſter than the Nature of the Thing admitted; and thus I caſt myself down again into the deepeſt Gulph of human Miſery that ever Man fell into, or perhaps could be conſiſtent with Life and a State of Health in the World.

1719 May 6 (Gregorian calendar), [Daniel Defoe], The Life and Strange Surprizing Adventures of Robinson Crusoe, […], 3rd edition, London: […] W[illiam] Taylor […], published 1719, page 43

When I do myself the honour of speaking to you next on the subject, I shall hope to receive a more favourable answer than you have now given me; though I am far from accusing you of cruelty at present, because I know it to be the established custom of your sex to reject a man on the first application, and perhaps you have even now said as much to encourage my suit as would be consistent with the true delicacy of the female character.

1813 January 27, [Jane Austen], chapter XIX, in Pride and Prejudice: […], volume I, London: […] [George Sidney] for T[homas] Egerton, […], page 251

Libertarian paternalism is the view that, because the way options are presented to citizens affects what they choose, society should present options in a way that "nudges" our intuitive selves to make choices that are more consistent with what our more deliberative selves would have chosen if they were in control.

2012 January, Steven Sloman, “The Battle between Intuition and Deliberation ”, in American Scientist‎, volume 100, number 1, archived from the original on 8 January 2012, page 74

When we ask whether ideas or terms are consistent or inconsistent with each other, the question really is, in what manner the relation presupposed between the ideas qualifies them for being combined as terms of a judgment.

1857, William Spalding, “Introduction”, in An Introduction to Logical Science: Being a Reprint of the Article “Logic” from the Eighth Edition of the Encyclopædia Britannica, Edinburgh: Adam and Charles Black, chapter II (The Function and Axioms of Logical Science), paragraph 12(2), pages 22–23

Part of establishing a foundation for geometry was demonstrating that the axioms were consistent – that they could never lead to contradictions.

2008, Charles Petzold, “Centuries of Progress”, in The Annotated Turing: A Guided Tour through Alan Turing’s Historic Paper on Computability and the Turing Machine, Indianapolis, Ind.: Wiley Publishing, page 39

The Diurnal motion of the primum mobile, is it not from Eaſt to Weſt? And the annual motion of the Sun through the Ecliptick, is it not on the contrary from Weſt to Eaſt? How then can you make theſe motions being conferred on the Earth, of contraries to become conſiſtents?

1661, Galileo Galilei, “Galilæus: Galilæus Lincæus, His Systeme of the World. The Second Dialogue.”, in Thomas Salusbury, transl., Mathematical Collections and Translations, volume I, part I, London: William Leybourne, pages 234–235

[F]rom the fourth century onwards, the Eastern Church divided penitents into four classes. […] The consistentes (the last class—συστάντες, consistentes) "stand together with the faithful, and do not go out with the catechumens. Last comes participation in the sacraments (ἁγιασμάτων)."]

Addis, Thomas Arnold, “PENITENTIAL DISCIPLINE AND BOOKS”, in A Catholic Dictionary: Containing Some Account of the Doctrine, Discipline, Rites, Ceremonies, Councils, and Religious Orders of the Catholic Church, London: Kegan Paul, Trench, & Co., […], page 651