This PR modifies the `grind` algebra typeclasses to use `SMul x y` instead of `HMul x y y`.
module
grind
This PR also fixes missing `@[expose]` in grind support definitions.
grind linarith
This PR implements equality elimination in `grind linarith`. The current implementation supports only `IntModule` and `IntModule` + `NoNatZeroDivisors`