What does a4 stand for?
a4 stands for "Axiom 4"
How to abbreviate "Axiom 4"?
"Axiom 4" can be abbreviated as a4
What is the meaning of a4 abbreviation?
The meaning of a4 abbreviation is "Axiom 4"
What does a4 mean?
a4 as abbreviation means "Axiom 4"