fwd H as H0 ... Hn
The type of H must be the premise of a forward simplification theorem.
This tactic is under development. It simplifies the current context by removing H using the following methods: forward application (by lapply) of a suitable simplification theorem, chosen automatically, of which the type of H is a premise, decomposition (by decompose), rewriting (by rewrite). H0 ... Hn are passed to the tactics fwd invokes, as names for the premise they introduce.
The ones opened by the tactics fwd invokes.