15_a_history_of_qed
CTSS was used at Bell Labs as part of our participation in the Multics project , and as Ken began to use Multics , he wrote yet another version of QED for that system .

%3 0015_0002__was_0015_0003__used was_used 0015_0001__CTSS ctss 0015_0002__was_0015_0003__used->0015_0001__CTSS [arg1] 0015_0005__Bell_0015_0006__Labs bell_labs 0015_0002__was_0015_0003__used->0015_0005__Bell_0015_0006__Labs at[loc] 0015_0008__part part 0015_0002__was_0015_0003__used->0015_0008__part as[prd] 0015_0011__participation participation 0015_0008__part->0015_0011__participation of 0015_0011__participation->0015_0005__Bell_0015_0006__Labs [genv] 0015_0013__the_0015_0014__Multics_0015_0015__project the_multics_project 0015_0011__participation->0015_0013__the_0015_0014__Multics_0015_0015__project in 0015_0017__and and 0015_0017__and->0015_0002__was_0015_0003__used [conj1] 0015_0018__as as[cnt] 0015_0017__and->0015_0018__as [conj2] 0015_0020__began began 0015_0018__as->0015_0020__began [restriction] 0015_0026__wrote wrote 0015_0018__as->0015_0026__wrote [scope] 0015_0019__Ken ken 0015_0020__began->0015_0019__Ken [arg0] 0015_0022__use use 0015_0020__began->0015_0022__use [arg1] 0015_0026__wrote->0015_0019__Ken [arg0] 0015_0028__anothe0015_0029__version another_version 0015_0026__wrote->0015_0028__anothe0015_0029__version [arg1] 0015_0022__use->0015_0019__Ken [arg0] 0015_0023__Multics multics 0015_0022__use->0015_0023__Multics [arg1] 0015_0028__anothe0015_0029__version->0015_0023__Multics for 0015_0027__yet yet 0015_0028__anothe0015_0029__version->0015_0027__yet [qual] 0015_0031__QED qed 0015_0028__anothe0015_0029__version->0015_0031__QED of
arc(r_0015_0002__was_r_0015_0003__used,r_0015_0001__CTSS,arg1).
arc(r_0015_0002__was_r_0015_0003__used,r_0015_0005__Bell_r_0015_0006__Labs,r_0015_0004__at__loc).
arc(r_0015_0002__was_r_0015_0003__used,r_0015_0008__part,r_0015_0007__as__prd).
arc(r_0015_0008__part,r_0015_0011__participation,r_0015_0009__of).
arc(r_0015_0011__participation,r_0015_0005__Bell_r_0015_0006__Labs,genv).
arc(r_0015_0011__participation,r_0015_0013__the_r_0015_0014__Multics_r_0015_0015__project,r_0015_0012__in).
arc(r_0015_0017__and,r_0015_0002__was_r_0015_0003__used,coord_conj1).
arc(r_0015_0017__and,r_0015_0018__as_cnt,coord_conj2).
arc(r_0015_0018__as_cnt,r_0015_0020__began,restriction_).
arc(r_0015_0018__as_cnt,r_0015_0026__wrote,scope_).
arc(r_0015_0020__began,r_0015_0019__Ken,arg0).
arc(r_0015_0020__began,r_0015_0022__use,arg1).
arc(r_0015_0022__use,r_0015_0019__Ken,arg0).
arc(r_0015_0022__use,r_0015_0023__Multics,arg1).
arc(r_0015_0026__wrote,r_0015_0019__Ken,arg0).
arc(r_0015_0026__wrote,r_0015_0028__another_r_0015_0029__version,arg1).
arc(r_0015_0028__another_r_0015_0029__version,r_0015_0023__Multics,r_0015_0032__for).
arc(r_0015_0028__another_r_0015_0029__version,r_0015_0027__yet,qual).
arc(r_0015_0028__another_r_0015_0029__version,r_0015_0031__QED,r_0015_0030__of).


IP-MAT ILYR ILYR NP-SBJ NPR CTSS BED;~cat_Ve_passive_ was IP-PPL-CAT NP-LGS * VVN;~Cn.n/a used PP-LOC P-ROLE at NP NPR Bell NPRS Labs PP-PRD P-ROLE as NP N part PP P-ROLE of NP NP-GENV PRO;_genm_ our N participation PP P-ROLE in NP D the NPR Multics N project PUNC , CONJP CONJ and ILYR PP-SCON-CNT P-CONN as IP-ADV NP-SBJ NPR Ken VBD began IP-INF-OB1 TO to VB use NP-OB1 NPR Multics PUNC , NP-SBJ PRO he VBD wrote NP-OB1 ADVP ADV yet D another N version PP P-ROLE of NP NPR QED PP P-ROLE for NP D that N system PUNC .
( (IP-MAT (ILYR (ILYR (NP-SBJ (NPR CTSS;{CTSS}))
                      (BED;~cat_Ve_passive_ was;{be})
                      (IP-PPL-CAT (NP-LGS *)
                                  (VVN;~Cn.n/a used;{use[as]})
                                  (PP-LOC (P-ROLE at;{at})
                                          (NP;{BELL_LABS} (NPR Bell;{Bell})
                                                          (NPRS Labs;{Labs})))
                                  (PP-PRD (P-ROLE as;{as})
                                          (NP (N part;{part})
                                              (PP (P-ROLE of;{of})
                                                  (NP (NP-GENV;{BELL_LABS} (PRO;_genm_ our;{our}))
                                                      (N participation;{participation})
                                                      (PP (P-ROLE in;{in})
                                                          (NP (D the;{the})
                                                              (NPR Multics;{Multics})
                                                              (N project;{project})))))))))
                (PUNC ,)
                (CONJP (CONJ and;{and})
                       (ILYR (PP-SCON-CNT (P-CONN as;{as})
                                          (IP-ADV (NP-SBJ;{KEN} (NPR Ken;{Ken}))
                                                  (VBD began;{begin})
                                                  (IP-INF-OB1 (TO to;{to})
                                                              (VB use;{use})
                                                              (NP-OB1;{MULTICS} (NPR Multics;{Multics})))))
                             (PUNC ,)
                             (NP-SBJ;{KEN} (PRO he;{he}))
                             (VBD wrote;{write})
                             (NP-OB1;{MULTICS_QED} (ADVP (ADV yet;{yet}))
                                                   (D another;{another})
                                                   (N version;{version})
                                                   (PP (P-ROLE of;{of})
                                                       (NP (NPR QED;{QED})))
                                                   (PP (P-ROLE for;{for})
                                                       (NP;{MULTICS} (D that;{that})
                                                                     (N system;{system})))))))
          (PUNC .))
  (ID 15_a_history_of_qed))