Rast talk page

Everything looks good.

Conway: your crossings are all negative and should be positive. (fixed)

Conway: the planar graph seems out of place in the conway notation section. (fixed, moved to its own section)

Signed planar graph: looks good. Move it up to the first section on names and notations. I think it fits well there. Also, pull a copy of graph out of the justification box so that it is visible without opening the box. (done)

Signed planar graph: change the name from planar graph to signed planar graph (fixed)

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