Comparison with theorem There is no formal distinction between a lemma and a theorem, only one of intention (see Theorem terminology). However, a lemma can be considered a minor result whose sole purpose is to help prove a more substantial theorem – a step in the direction of proof.
comparison with theorem there is no formal distinction between a lemma and a theorem only one of intention (see theorem terminology) however a lemma can be considered a minor result whose sole purpose is to help prove a more substantial theorem – a step in the direction of proof