1 of 2

4.2 Or Is It Disjunction: v

Besides &, or conjunction, we also need a symbol for “or”. For that we’ll use the lower case letter “v”, called disjunction, wedge, or just or.

Or, disjunction, wedge, v: works just like &

In this section we only give you one tip, and you have to figure out the rest.

Here’s the tip: v works just like &.

When you have a mixture of v and &, you always have to be careful about grouping!

Disjunction and conjunction can work together. You just have to be careful about grouping.

Disjunction is a connective, just like &, and it technically connects two sentences, but we will use long strings of “v”s too, like PvQvRvSvT.

Connectives don’t need to connect different sentences.

Those sentences are odd to say, but they are still grammatically correct.

Since v is called disjunction, the sentences connected with v are called disjuncts.

In the example above, the parentheses are not parts of the disjuncts.

Disjunct: a sentence in a disjunction. Conjunct: a sentence in a conjunction.

But parentheses are part of the complex sentence they make, which might be a disjunct or conjunct in the bigger sentence.