From af96895682a2ce21d85d9fa5a25d1caafc050430 Mon Sep 17 00:00:00 2001 From: Ramakrishnan Muthukrishnan Date: Sat, 23 Apr 2011 19:19:04 +0530 Subject: [PATCH] Add a more detailed explanation. --- src/sicp/ex3_31.rkt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/sicp/ex3_31.rkt b/src/sicp/ex3_31.rkt index 4b78357..fae2074 100644 --- a/src/sicp/ex3_31.rkt +++ b/src/sicp/ex3_31.rkt @@ -16,6 +16,10 @@ Let us take half adder example: (and-gate d e s) 'ok)) +The gate procedures like inverter and or-gate calls add-action! which +is the procedure which adds the gate operation to the agenda. If it +is not called once, then the operation is not added into the agenda. + If accept-action-proc! is defined without the call to proc, i.e. (define (accept-action-proc! proc) -- 2.37.2