The phrase "false proposition" is correct and usable in written English.
You can use it to describe an idea or plan that is untrue or incorrect. For example, "The mayor's false proposition to lower taxes was quickly rejected by the city council."
The propositional negation of a true proposition is a false proposition.
There is no other way in which a false proposition can arise.
"The campaign against FGM could be undermined by a false proposition that the ill effects can be reversed.
A contingently true or false proposition is thus one that is true in some possible worlds and false in others (e.g., "France is a democracy").
In the 1960s, epistemology was dominated by the idea that knowledge requires justification and that one can be justified in believing a false proposition.
And in like manner, a false proposition will be deemed to be one which are, the nonexistence of things which are, and the existence of things which are not.
You only further perpetuate gender stereotypes, and subliminally bolster the false proposition that these stereotypes are biologically determined, when you use the word "girly" to describe such cultural artifacts.
Necessity, in logic and metaphysics, a modal property of a true proposition whereby it is not possible for the proposition to be false and of a false proposition whereby it is not possible for the proposition to be true.
The principle that a necessarily false proposition implies any proposition, and that a necessarily true proposition is implied by any proposition, was apparently first propounded in twelfth century Latin logic, and came to be widely, though not universally, accepted in the fourteenth century.
"Just as we in the arts world say it is a false proposition when you say 'Why don't you stop funding the arts and spend the money on hospitals?' it is exactly the same to think you have to have a choice between having the opening ceremony of the Olympic Games and the Arts Council's cuts to regularly funded clients.
(p_{ 0.0, 1.0)}) can be read as a false proposition.
