1. Cover-Vol 2- Issue 1- February 2021

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2. The Belluce lattice associated with a bounded BCK -algebra

Pages 1-16

D. Busneag; D. Piciu; M. Istrata

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3. Crossing cubic ideals of BCK/BCI-algebras

Pages 17-31

Young Bae Jun; Seok-Zun Song

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4. Tense and dynamic algebras related to GFA

Pages 33-46

Kh. Abolpour; M. M Zahedi; marzieh shamsizadeh

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5. On hyper BI-algebras

Pages 47-67

Sogol Niazian

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6. Commutative MBJ-neutrosophic ideals of $BCK$-algebras

Pages 69-81

Young Bae Jun; Mohammad Mohseni Takallo

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7. Fuzzy n-fold obstinate and maximal (pre)filters of EQ-algebras

Pages 83-98

Batoul Ganji Saffar

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8. A graph associated to a polygroup with respect to an automorphism

Pages 99-112

Elahe Mohammadzadeh

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9. Persian translation of abstracts

Pages 113-121

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