A single molecular formula can represent a number of molecular isomers.

This formula represents a physical law that radio devices use.

The first two formulae represent the initial state.

Thus in this example, the formula does not yet represent a proposition, but is merely an empty abstraction.

Since the Turing Machine that our formula represents is deterministic, this presents no problem.

The first two formulae represent the initial situation; the third formula represents the effect of executing the action of opening the door at time 1.

In comments, formulas, etc., represents the nth term of the sequence.

The following two formulas can represent a running (continuous) standard deviation.

There has been some controversy about what geometric figure this formula represents.

The complicated formula represents a meld of census figures and the Democratic enrollment and vote in minority districts.