Experimentally, η η + − − = ( 2.232 ± ± 0.011 ) × × 10 − − 3 and η η 00 = ( 2.220 ± ± 0.011 ) × × 10 − − 3 . That is η η + − − ≠ ≠ η η 00 , implying | A π π + π π − − / A ¯ ¯ π π + π π − − | ≠ ≠ 1 and | A π π 0 π π 0 / A ¯ ¯ π π 0 π π 0 | ≠ ≠ 1 , and thereby satisfying condition (10).