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.
Examples of sound in a sentence. 1  a building of sound construction. 2  The bridge is structurally sound. 3  a sound mind in a sound body.  The tests show that his heart is 1  sound. She used sound reasoning in making the decision.  She gave us some sound 1  advice. She has a sound understanding of the system's structure.  The stock market has made a sound recovery.