46KiB, 438x720, 1615912948847.jpg View SameGoogleiqdbSauceNAO Anonymous Tue 23 Mar 01:31:23 2021 No.12870436 ViewReplyOriginalReport Quoted By: >>12872040 >>12872075 >>12872088 >>12872094 Can the four color theorem be proved using the valency of dual complexes?