File: Coin.curry

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curry-tools 1.0.1%2Bdfsg1-1
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{-# OPTIONS_CYMAKE -F --pgmF=currypp --optF=contracts #-}

import Test.Prop

-- Examples with nondeterministicm specifications

coin'spec = 0 ? 1

coin = 1 ? 0   --> should be executed without violation

coinCorrect = coin <~> coin'spec


coin3'spec = coin'spec

coin3 = coin ? 2  --> should produce a violation

coin3Violation = toError coin3