matita/matita/contribs/lambdadelta/basic_2A/etc/llpr/llpx_sn_llpx_sn.etc

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  14
  15 include "basic_2/relocation/llpx_sn.ma".
  16
  17 (* LAZY SN POINTWISE EXTENSION OF A CONTEXT-SENSITIVE REALTION FOR TERMS ****)
  18
  19 definition llpx_sn_confluent2: relation (lenv→relation term) ≝ λR1,R2.
  20                                ∀L0,T0,T1. R1 L0 T0 T1 → ∀T2. R2 L0 T0 T2 →
  21                                ∀L1. llpx_sn R1 0 T0 L0 L1 → ∀L2. llpx_sn R2 0 T0 L0 L2 →
  22                                ∃∃T. R2 L1 T1 T & R1 L2 T2 T.
  23
  24 (* Note: we miss llpx_sn_conf and derivatives: lpr_conf lprs_conf *)