Similarly, false propositions can be divided into those like "2 + 2 = 5 that are false by logical necessity (impossible propositions), and those like "France is a monarchy"—that are not (contingently false propositions).
At Burning Man, it's impossible to purchase necessities; instead, you have to bring them with you.
Normal people, if they can be located outside the playpens of mythology and tall tales, are exactly those we do know, in our families and relationships, by choice or happenstance, or as is so often the case in this impossible city, out of necessity.
Good mozzarella, another necessity, is not impossible to find.
Second, in different ways the logic masters insist on a necessity that is impossible to attain as the criterion for successful arguments.
One staff member told the Guardian: "Our zero-hour contracts and low wages mean that affording basic necessities is becoming impossible.
In combination with Venezuela's current conditions, though having a − 4% GDP growth rate, 60% inflation rate, local currency devaluation, and mistrust of government due to the shortage of necessities make it impossible to believe Venezuela can overcome, the theory make sure of the answer with the introduction of NEIFs (see Fig. 3).
Madaya is one of several towns where the crossfire of Syria's civil war has made the delivery of routine supplies nearly impossible, leaving people short of necessities such as food and medicine.
Untangling or decoupling how people feel about Obama's race from how they feel about the policies he has pursued in office and his general beliefs about the size and necessity of government is impossible.
This general pattern is true by necessity, since it is impossible for naturalization or spread to occur instantaneously due to the time required to reach reproductive maturity.
