Initial Equiv commit
WIP; behavioral equivalence
Behavioral equivalence
Behavioral eqv. is an eqv.
WIP; behavioral eqv. is a congruence
Behavioral eqv. is a congruence
WIP; constant folding trans.
Constant folding transformations
Soundness of constant folding
WIP; soundness of 0 + n optimization
Soundness of 0 + n optimization
subst_inequiv theorem
Removed trailing whitespaces
Module Himp
Added TODO note