mpl
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operations
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variableDeclarations
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initialValue
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statements
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form
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leftHandSide
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AtomicExpression
LiteralValue
rawValue
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variable
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operand1
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AddExpression
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MultiplyExpression
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UnaryExpression
operand
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NE
GT
LT
GE
LE
If
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then
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body
While
condition
For
from
downwards
to
Operation
parameters
preconditions
postconditions
Function
Procedure
Return
value
OperationExpression
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