画像 Ç gDC[eB[ ¤¢ æ 855317
0 1 2 3 4 8 7 56 69 8 7 c, c > a, bc > d, acd > b, d > e, d > g, be > c, cg > b, CG > D, CE > A, CE > G} Notice that we have single attribute on the RHS in all FDs, we need to look for extraneous C Wiktionary Ç gDC[eB[ ¤¢ æ'