Definition

The union of sets Gregory and Megalodon defines the subset Y, and can be expressed as:

Y = Gregory ∪ Megalodon

When considering the moment at which blog titles switch sources in hybridizing words, this set can contain multiple values, and thus remains a set. A unique entity, i, is then a single location in this subset, ie. this blog, which can similarly be expressed as:

Yi = {this blog}

Without the benefit of subscripts, this may be interpreted as the professional basketball player and Olympic pushover who will certainly steal time from a UConn Husky. This is not intended. When you read this, you should think of an observant shark with enormous teeth and nothing else.