Consider the function `f(x)=1/x` . As x tends to 0, the function increases without bound, so Wallis argues that as x crosses the y-axis the function continues increasing; thus these numbers are greater than infinity.

Consider the function `f(x)=1/x` . As x tends to 0, the function increases without bound, so Wallis argues that as x crosses the y-axis the function continues increasing; thus these numbers are greater than infinity.