1. On what is not

   • Joseph Horovitz

   OriginalPaper Pages: 345 - 370

2. Mandatory rules and exclusionary reasons

   • Chaim Gans

   OriginalPaper Pages: 373 - 394

3. Rigidity and corrigibility

   • Avron Polakow

   OriginalPaper Pages: 397 - 407

4. Popper in basic English

   • Joseph Agassi

   Critical Study Pages: 409 - 419

5. The Bottle Imp and the Prediction paradox

   • Roy A. Sorensen

   Problem Section Pages: 421 - 424

6. The problem of the Bottle Imp

   • Saul Traiger

   Problem Section Pages: 425 - 426

7. Passing the bottle

   • Michael J. Wreen

   Problem Section Pages: 427 - 444