First: a graph with two infinite dimensions doesn't have a top right point, it has a top right extent.
Second: when graphing, you don't get to pick what the normal is. That's a property of the graph. It is not the (impossible) property you've described.
First: a graph with two infinite dimensions doesn't have a top right point, it has a top right extent.
Second: when graphing, you don't get to pick what the normal is. That's a property of the graph. It is not the (impossible) property you've described.