Depending on breed, management and environment, the domestic horse (including draft horses) today has a life expectancy of 25 to 35 years. It is uncommon, but a few animals live into their 40s and, occasionally, beyond. The oldest verifiable record was Old Billy, a 19th-century horse that lived to the age of 62.
TRUE. Validity is a necessary condition for being sound. 14. FALSE. A valid argument can have a true conclusion and false premises (see #11); and if an argument does not have all true premises, then it is not sound.
TO BEGIN WITH... Some people think that an argument and a disagreement are the same thing. Actually, there is a big difference between the two. One thing I don't like about an argument is that it always interrupts a discussion. Before we get into that here are a few more Hummerdingers.