The top left hand loop of the gallows characters is a 4. Who disagrees?

[Mark Knowles]

ReneZ: I should say that I think we can be very confident that visually we have a "4" shape as the left hand part of the gallows characters with a top left hand loop, even if we cannot be sure of the meaning, if there is any meaning other than its usage.

I think the visual identification of the "4" shape should be amenable to rigourous demonstration.