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| Level | Concept | Trapezoidal fuzzy numbers | 2-Tuples | |
|---|---|---|---|---|
| S0 | TD | Totally disagree | (.0 .0 .2 .4) | (TD, 0) |
| S1 | PD | Partially disagree | (.2 .4 .5 .7) | (PD, 0) |
| S2 | PA | Partially agree | (.5 .7 .7 .9) | (PA, 0) |
| S3 | TA | Totally agree | (.7 .9 1.0 1.0) | (TA, 0) |
