Problem: If "I couldn't put the pot on the shelf because it was too high.", does it follow that "The shelf was too high."?

Answer: yes


Problem: If "It is not easy to space buttonholes exactly the same distance apart, and it is very difficult to cut them precisely the right size. The tiniest slip of the scissors will make the hole too large, and even one thread uncut will leave it too small.", does it follow that "Even one thread uncut will leave the scissors too small."?

Answer: no


Problem: If "If the con artist has succeeded in fooling Sam, he would have lost a lot of money.", does it follow that "Sam would have lost a lot of money."?

Answer: yes


Problem: If "Always before, Larry had helped Dad with his work. But he could not help him now, for Dad said that his boss at the railroad company would not want anyone but him to work in the office.", does it follow that "Larry's boss at the railroad company would not want anyone but him to work in the office."?

Answer:
no