Examlex
Construct a derivation to prove that each of the following propositions is a logical truth of PL using any of the twenty-five rules and conditional proof.
-E ⊃ (F ⊃ E)
Flexible Exchange Rates
A currency system where the value of a currency in relation to others is determined by the foreign exchange market without direct government control.
Inflation
The rate at which the general level of prices for goods and services is rising, and, subsequently, purchasing power is falling. Central banks attempt to limit inflation, and avoid deflation, in order to keep the economy running smoothly.
Unemployment
The situation when individuals who are capable of working and willing to work cannot find employment.
Balance of Payments
A comprehensive record of all economic transactions between residents of a country and the rest of the world during a specific period.
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