RosettaCodeData/Task/Constrained-genericity/J/constrained-genericity-3.j
2016-12-05 22:15:40 +01:00

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lunch=:'' conew 'FoodBox'
a1=: conew 'Apple'
a2=: conew 'Apple'
add__lunch a1
add__lunch a2
george=: conew 'Connoisseur'
add__lunch george
|inedible: assert