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Table 2 An information system

From: Application of soft sets to diagnose the prostate cancer risk

U

a 1

a 2

â‹Ż

a k

â‹Ż

a | A |

u 1

f( u 1 , a 1 )

f( u 1 , a 2 )

â‹Ż

f( u 1 , a k )

â‹Ż

f( u 1 , a | A | )

u 2

f( u 2 , a 1 )

f( u 2 , a 2 )

â‹Ż

f( u 2 , a k )

â‹Ż

f( u 2 , a | A | )

u 3

f( u 3 , a 1 )

f( u 3 , a 2 )

â‹Ż

f( u 3 , a k )

â‹Ż

f( u 3 , a | A | )

â‹®

â‹®

â‹®

⋱

â‹®

⋱

â‹®

u | U |

f( u | U | , a 1 )

f( u | U | , a 2 )

â‹Ż

f( u | U | , a k )

â‹Ż

f( u | U | , a | A | )