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1 (**************************************************************************)
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14
15 include "basic_2/rt_computation/csx_fpb.ma".
16 include "basic_2/rt_computation/fpbs_fqup.ma".
17
18 (* PARALLEL RST-COMPUTATION FOR CLOSURES ************************************)
19
20 (* Properties with sn for extended parallel rt-transition for terms *********)
21
22 (* Basic_2A1: was: csx_fpbs_conf *)
23 lemma fpbs_csx_conf:
24       ∀G1,L1,T1. ❪G1,L1❫ ⊢ ⬈*𝐒 T1 →
25       ∀G2,L2,T2. ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫ → ❪G2,L2❫ ⊢ ⬈*𝐒 T2.
26 #G1 #L1 #T1 #HT1 #G2 #L2 #T2 #H @(fpbs_ind … H) -G2 -L2 -T2
27 /2 width=5 by csx_fpb_conf/
28 qed-.