'A lemma is one proposition used to prove another; this is a choice between 2 propositions'
Dilemma
LOGIC: A lemma is one proposition used to prove another; this is a choice between 2 propositions
A lemma is one proposition used to prove another; this is a choice between 2 propositions
A lemma is one proposition used to prove another; this is a choice between 2 propositions
LOGIC
Dilemma
LOGIC