Using the Items in Exercise 9-12 in Your Text as Examples

Short Answer

Using the items in Exercise 9-12 in your text as examples, determine the truth value of the second claim (below) based on that given for the first claim. Translation into standard form may be required.
a. Some fish from the river have been found to contain toxic levels of trace minerals. ()
b. No fish in which toxic levels of trace minerals have not been found have come from the river.