proper

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proper

1. Maths logic (of a relation) distinguished from a weaker relation by excluding the case where the relata are identical. For example, every set is a subset of itself, but a proper subset must exclude at least one member of the containing set
2. the parts of the Mass that vary according to the particular day or feast on which the Mass is celebrated
References in classic literature ?
Dashwood feel this ungracious behaviour, and so earnestly did she despise her daughter-in-law for it, that, on the arrival of the latter, she would have quitted the house for ever, had not the entreaty of her eldest girl induced her first to reflect on the propriety of going, and her own tender love for all her three children determined her afterwards to stay, and for their sakes avoid a breach with their brother.
With what propriety, therefore, or for what good purposes, are attempts at this particular period made by some men to depreciate the importance of the Union?
There are features in the Constitution which warrant each of these suppositions; and as far as either of them is well founded, it shows that the convention must have been compelled to sacrifice theoretical propriety to the force of extraneous considerations.
But I cannot forget the length of her visit to the Mainwarings, and when I reflect on the different mode of life which she led with them from that to which she must now submit, I can only suppose that the wish of establishing her reputation by following though late the path of propriety, occasioned her removal from a family where she must in reality have been particularly happy.
AS a preface is the only place where an author can with propriety explain a purpose or apologize for shortcomings, I venture to avail myself of the privilege to make a statement for the benefit of my readers.
Blanche's delight expressed itself in the form of two unblushing outrages on propriety, committed in close succession.
Blanche left Arnold to array herself in her bridal splendor--after another outrage on propriety, and more consequences of free institutions.
Such is that memorable story of the ghost of George Villiers, which might with more propriety have been made a present of to Dr Drelincourt, to have kept the ghost of Mrs Veale company, at the head of his Discourse upon Death, than have been introduced into so solemn a work as the History of the Rebellion.
There is, indeed, no other reason to be assigned for it, than because the play is drawing to a conclusion; as if it was no less natural in a rogue to repent in the last act of a play, than in the last of his life; which we perceive to be generally the case at Tyburn, a place which might indeed close the scene of some comedies with much propriety, as the heroes in these are most commonly eminent for those very talents which not only bring men to the gallows, but enable them to make an heroic figure when they are there.
My strict sense of propriety restores it (by the hands of my wife) to its place on the writer's table.
Even her propriety could not dispute that there was impropriety in the world; but Mrs General's way of getting rid of it was to put it out of sight, and make believe that there was no such thing.
Today, the company fabricates a full propriety branded line of geotextile tubes as well as additional products, such as, hydraulically filled sandbags, anti-scour aprons, turbidity barriers, roll-off containers (dumpster) bags, and emergency lift bags.