/// <summary>
/// Modify a Fact by Retracting it and Asserting the replacement one.
/// If the new Fact has no label (null or Empty), then the Label of the existing fact is kept.
/// </summary>
/// <param name="currentFactLabel">The label of the Fact to modify.</param>
/// <param name="newFact">The Fact to modify to.</param>
/// <returns>True if <term>currentFact</term> has been retracted from the FactBase, otherwise False ; this whether <term>newFact</term> already exists in the factbase, or not.</returns>
public bool Modify(string currentFactLabel, Fact newFact)
{
return(IE.Modify(currentFactLabel, newFact));
}
/// <summary>
/// Modify a Fact by Retracting it and Asserting the replacement one.
/// If the new Fact has no label (null or Empty), then the Label of the existing fact is kept.
/// </summary>
/// <param name="currentFact">The Fact to modify.</param>
/// <param name="newFact">The Fact to modify to.</param>
/// <returns>True if <term>currentFact</term> has been retracted from the FactBase, otherwise False ; this whether <term>newFact</term> already exists in the factbase, or not.</returns>
public bool Modify(Fact currentFact, Fact newFact)
{
return(IE.Modify(currentFact, newFact));
}