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ss_of_conv : term -> conv -> simpset -> simpset
SYNOPSIS
Add a new conversion to a simpset.
DESCRIPTION
In their maximal generality, simplification operations in HOL Light (as invoked
by SIMP_TAC) are controlled by a `simpset', which may contain conditional and
unconditional rewrite rules, conversions and provers for conditions, as well as
a determination of how to use the prover on the conditions and how to process
theorems into rewrites. A call ss_of_conv pat cnv ss adds the conversion
cnv to the simpset ss to yield a new simpset, restricting the initial
filtering of potential subterms to those matching pat.