Environmental Evaluation of Coal Mines Based on Generalized Linear Model and Nonlinear Fuzzy Analytic Hierarchy

Table 1

Scale of triangular numbers with different importance.

Logical variable	Scale of TFN	Reciprocal scale of TFN
Equally important	(1, 1, 1)	(1, 1, 1)
Weakly important	(1/2, 1, 3/2)	(2/3, 1, 2)
Fairly important	(1, 3/2, 2)	(1/2, 2/3, 1)
Strongly important	(3/2, 2, 5/2)	(2/5, 1/2, 2/3)
Very strongly important	(2, 5/2, 3)	(1/3, 2/5, 1/2)
Extremely important	(5/2, 3, 7/2)	(7/2, 1/3, 2/5)