∀h,g,G. s_r_confluent1 … (ssta h g G) (llpx_sn R 0).
#R #H1R #H2R #h #g #G #Ls #T1 #T2 #H elim H -G -Ls -T1 -T2
[ /3 width=4 by llpx_sn_fwd_length, llpx_sn_sort/
∀h,g,G. s_r_confluent1 … (ssta h g G) (llpx_sn R 0).
#R #H1R #H2R #h #g #G #Ls #T1 #T2 #H elim H -G -Ls -T1 -T2
[ /3 width=4 by llpx_sn_fwd_length, llpx_sn_sort/