Other predicates may nevertheless take arguments of different sorts; for example, in a two-sorted language in which lowercase variables range over numbers and uppercase variables range over sets of numbers, $x \epsilon X$, for example, can take as arguments variables of different sorts and may be read "$x$ is in $X$".
The Highway Department, for example, has looked into the relative environmental merits of different sorts of fjord-crossings.
Frankfurt uses the examples of three different sorts of addicts to illustrate his concept of free will.
Little Bear, when he spoke recently at the Heard Museum in Phoenix, gave a stunning personal example of a different sort of meeting between Western and native worldviews.
Conversely, similar symptoms can be produced by a variety of organisms.For example, four different sorts of food-borne bug Salmonella, Shigella, Campylobacter and Yersinia can cause reactive arthritis, a painful inflammation of the joints that may last months or even years.
These interpretations were investigated using multiple sorting techniques, with respondents asked to sort 21 examples of different architecture styles according to their own criteria.
They're examples of different people.
John Constantine, Swamp Thing, and Wolverine are all great examples of superheroes that have different sorts of names.
Numerical examples are presented for different sorts of problems, using exact theory, the present series expansion theories of different order, and various classical theories.
The examples just discussed point to two different sorts of environmental factor.
