| | Who Cites divides-graph1? |
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| divides-graph1 | Def DivGraph_1 == Graph(i,j:  . i | j) |
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| divides | Def b | a ==  c: . a = b c |
| | | Thm*  a,b:. (a | b)  Prop |
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| nat_plus | Def == {i:| 0 < i } |
| | | Thm* Type |
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| rel-graph | Def Graph(x,y:T. R(x;y)) == < vertices = T, edges = {p:(T T)| R(1of(p);2of(p)) }, incidence = Id > |
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| tidentity | Def Id == Id |
| | | Thm* A:Type. Id A  A |
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| pi2 | Def 2of(t) == t.2 |
| | | Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p)) |
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| pi1 | Def 1of(t) == t.1 |
| | | Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p) A |
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| mkgraph | Def < vertices = v, edges = e, incidence = f > == < v,e,f,o > |
| | | Thm* v,e:Type, f:(evv), o:Top. < vertices = v, edges = e, incidence = f > Graph |
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| identity | Def Id(x) == x |
| | | Thm* A:Type. Id AA |
