made introduction of explicit application stable under removal of vacuous facts (which only lower the rank of constants but do not participate in the proof)
/***************************************************************************
Title: GraphBrowser/AWTFontMetrics.java
Author: Gerwin Klein, TU Muenchen
AbstractFontMetrics avoids dependency on java.awt.FontMetrics in
batch mode.
***************************************************************************/
package GraphBrowser;
public interface AbstractFontMetrics {
public int stringWidth(String str);
public int getAscent();
public int getDescent();
}