التمثيل وهو إثبات حكم في جزئي لوجوده في جزئي آخر لمعنى جامع مشترك بينهما
Analogy is establishing a judgment in one particular because that judgment exists in another particular, on account of a common unifying feature shared between them.
The definition specifies four elements: a case with an established judgment, a second case whose judgment is sought, a common meaning, and the proposed transfer of the judgment through that meaning.
Its distinctive direction is from one particular to another particular. The common feature is offered as the ground of transfer.