# Logical Implication versus Approaches

1. Dec 21, 2009

### Noxide

Both the logical implication and approaches use the same symbol. Have the two ever been famously confused? Is it implied that one or the other only be used in a specific context?

logical
p --> q

approaches
x --> positive infinity

2. Dec 21, 2009

### Landau

hehe, nice pun.

I don't think it would ever be hard to tell from the context which one is used. The "approach" symbol is used in specific sentences like "f(x)-> f(a) if x-> a", or under the $$\lim$$ symbol.

Furthermore, the logical implication symbol $$\to$$ is mostly used in the specific area of logic. In other areas of mathematics one often uses $$\Rightarrow$$ for an implication.