public boolean add(TemporalExtendedPropositionDefinition tepd) {
        if (tepd != null) {
            boolean result = this.abstractedFrom.add(tepd);
            if (result) {
                recalculateChildren();
            }
            return result;
        } else {
            return false;
        }
    }
public boolean add ( TemporalExtendedPropositionDefinition tepd ) { if ( tepd != null ) { boolean result = this . abstractedFrom . add ( tepd ) ; if ( result ) { recalculateChildren ( ) ; } return result ; } else { return false ; } }
Adds a proposition id from which this slice definition is abstracted.

@param propId
a proposition id <code>String</code> for an abstract
parameter definition.