Nuprl Definition : nerve_box_edge1

nerve_box_edge1(G;box;x;i;j;c;y) ==
  if (c =z i) ∨bbeq-cname(y;j)) then nerve_box_edge(box;c;y)
  if (i =z 0)
    then groupoid-square1(G;nerve_box_label(box;flip(c;x));nerve_box_label(box;flip(flip(c;x);y));
         nerve_box_label(box;c);nerve_box_label(box;flip(c;y));nerve_box_edge(box;flip(c;x);y);
         nerve_box_edge(box;flip(flip(c;x);y);x);nerve_box_edge(box;flip(c;x);x))
  else groupoid-square2(G;nerve_box_label(box;c);nerve_box_label(box;flip(c;y));
       nerve_box_label(box;flip(c;x));nerve_box_label(box;flip(flip(c;y);x));nerve_box_edge(box;flip(c;y);x);
       nerve_box_edge(box;c;x);nerve_box_edge(box;flip(c;x);y))
  fi 



Definitions occuring in Statement :  nerve_box_edge: nerve_box_edge(box;c;y) nerve_box_label: nerve_box_label(box;L) name-morph-flip: flip(f;y) eq-cname: eq-cname(x;y) groupoid-square2: groupoid-square2(G;x00;x10;x01;x11;b;c;d) groupoid-square1: groupoid-square1(G;x00;x10;x01;x11;a;b;c) bor: p ∨bq bnot: ¬bb ifthenelse: if then else fi  eq_int: (i =z j) apply: a natural_number: $n
Definitions occuring in definition :  bor: p ∨bq apply: a bnot: ¬bb eq-cname: eq-cname(x;y) ifthenelse: if then else fi  eq_int: (i =z j) natural_number: $n groupoid-square1: groupoid-square1(G;x00;x10;x01;x11;a;b;c) groupoid-square2: groupoid-square2(G;x00;x10;x01;x11;b;c;d) nerve_box_label: nerve_box_label(box;L) nerve_box_edge: nerve_box_edge(box;c;y) name-morph-flip: flip(f;y)
FDL editor aliases :  nerve_box_edge1

Latex:
nerve\_box\_edge1(G;box;x;i;j;c;y)  ==
    if  (c  x  =\msubz{}  i)  \mvee{}\msubb{}(\mneg{}\msubb{}eq-cname(y;j))  then  nerve\_box\_edge(box;c;y)
    if  (i  =\msubz{}  0)
        then  groupoid-square1(G;nerve\_box\_label(box;flip(c;x));nerve\_box\_label(box;flip(flip(c;x);y));
                  nerve\_box\_label(box;c);nerve\_box\_label(box;flip(c;y));nerve\_box\_edge(box;flip(c;x);y);
                  nerve\_box\_edge(box;flip(flip(c;x);y);x);nerve\_box\_edge(box;flip(c;x);x))
    else  groupoid-square2(G;nerve\_box\_label(box;c);nerve\_box\_label(box;flip(c;y));
              nerve\_box\_label(box;flip(c;x));nerve\_box\_label(box;flip(flip(c;y);x));
              nerve\_box\_edge(box;flip(c;y);x);nerve\_box\_edge(box;c;x);nerve\_box\_edge(box;flip(c;x);y))
    fi 



Date html generated: 2016_06_16-PM-07_09_49
Last ObjectModification: 2015_09_23-AM-09_33_36

Theory : cubical!sets


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