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Lhses->leading-function-syms

Signature

(lhses->leading-function-syms lhses) → *

Arguments

lhses — Guard (pseudo-term-listp lhses).

Definitions and Theorems

Function: lhses->leading-function-syms

(defun
 lhses->leading-function-syms (lhses)
 (declare (xargs :guard (pseudo-term-listp lhses)))
 (let
  ((__function__ 'lhses->leading-function-syms))
  (declare (ignorable __function__))
  (b*
     (((when (atom lhses)) nil)
      (lhs (car lhses)))
     (pseudo-term-case
          lhs
          :fncall
          (add-to-set-eq lhs.fn
                         (lhses->leading-function-syms (cdr lhses)))
          :otherwise (lhses->leading-function-syms (cdr lhses))))))