(_a_) Is the law or general principle a well-established one?

 

(_b_) Does the law or principle clearly include the fact you wish to deduce from

it, or have you strained the inference?

 

(_c_) Does the importance of the law or principle warrant so important an

inference?

 

(_d_) Can the deduction be shown to prove too much?

 

3. _Parallel cases_

 

(_a_) Are the cases parallel at enough points to warrant an inference of similar

cause or effect?

 

(_b_) Are the cases parallel at the vital point at issue?

 

(_c_) Has the parallelism been strained?

 

(_d_) Are there no other parallels that would point to a stronger contrary

conclusion?

 

4. _Inferences_