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Alpha-Equivalence checks now knows two modes:
infer
mode, type inference is happening and Infer%s will be resolved, if possible.Also, two free but different Var%s are considered α-equivalent.
infer
mode, no type inference is happening and Infer%s will not be touched.Also, Two free but different Var%s are not considered α-equivalent.
In addition:
(a, a')
=>‹2; a›
[A, A']
=>«2; A»