Linked from
The 9 pages that link to Lenz's law, each with the reason it gives.
Faraday's law of inductionRelated: It explains the negative sign in Faraday's law.
Magnetic fluxRelated: It specifies the direction of effects caused by changing flux.
InductanceRelated: It fixes the opposing sign in the voltage induced by changing current.
Eddy currentRelated: It determines the direction of an eddy current’s magnetic response.
WeberRelated: Its minus sign gives physical direction to Faraday’s flux-voltage relation.