ian ▁football ers ▁Category : Al ger ia ▁international ▁football ers ▁Category : Associ ation ▁football ▁def enders ▁Category : Ex pat ri ate ▁football ers ▁in ▁Finland ▁Category : NA ▁Hus sein ▁De y ▁players ▁Category : CR ▁Bel ou iz d ad ▁players ▁Category : US M ▁Ann aba ▁players ▁Category : Al ger ian ▁exp atri ate ▁football ers ▁Category : 2 0 0 0 ▁African ▁Cup ▁of ▁Nations ▁players ▁Category : 2 0 0 2 ▁African ▁Cup ▁of ▁Nations ▁players ▁Category : Pe ople ▁from ▁Ann aba ▁Category : Al ger ian ▁exp atri ate ▁sports people ▁in ▁Finland ▁Category : MC ▁Al ger ▁players ▁Category : AC ▁O ulu ▁players ▁Category : Al ger ian ▁Ligue ▁Prof ession nelle ▁ 1 ▁players ▁Category : V e ik ka us li iga ▁players <0x0A> </s> ▁Gün ter ▁As ser ▁( 2 6 ▁February ▁ 1 9 2 6 , ▁Berlin ▁– ▁ 2 3 ▁March ▁ 2 0 1 5 ) ▁was ▁a ▁professor ▁emer it us ▁of ▁logic ▁and ▁mathematics ▁at ▁the ▁University ▁of ▁Gre if sw ald . ▁He ▁published ▁numerous ▁volumes ▁on ▁philosoph ers ▁and ▁mathemat icians . ▁His ▁own ▁research ▁was ▁in ▁comput ability ▁theory . ▁ ▁In ▁ 1 9 5 4 , ▁with ▁his ▁doctor al ▁ad visor ▁Karl ▁Sch r ö ter , ▁he ▁co - f ounded ▁the ▁journal ▁Zeitschrift ▁für ▁Mathemat ische ▁Log ik ▁und ▁Grund lagen ▁der ▁Mathemat ik , ▁which ▁later ▁became ▁Mathemat ical ▁Log ic ▁Qu arter