first definition of cpm:

[helm.git] / matita / matita / contribs / lambdadelta / ground_2 / steps / rtc.ma

diff --git a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc.ma b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc.ma
index 494650d04d9dff70e6bff2054b0aa538d2613ef5..62228d229e21af156c36c43980e8956f51a4fd48 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc.ma
+++ b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc.ma
@@ -22,13 +22,13 @@ include "ground_2/lib/arith.ma".
 
 record rtc: Type[0] ≝ {
    ri: nat; (* Note: inner r-steps *)
-   rh: nat; (* Note: head  r-steps *)
+   rs: nat; (* Note: spine r-steps *)
    ti: nat; (* Note: inner t-steps *)
-   th: nat  (* Note: head  t-steps *)
+   ts: nat  (* Note: spine t-steps *)
 }.
 
 interpretation "constructor (rtc)"
-   'Tuple ri rh ti th = (mk_rtc ri rh ti th).
+   'Tuple ri rs ti ts = (mk_rtc ri rs ti ts).
 
 interpretation "one structural step (rtc)"
    'ZeroZero = (mk_rtc O O O O).