Nuprl Rule : unionIsType

This rule proved as lemma rule_isect_member_formation_true3 in file rules/rules_isect.v
 at https://github.com/vrahli/NuprlInCoq  

H  ⊢ istype(A B)

  BY unionIsType ()
  
  H  ⊢ istype(A)
  H  ⊢ istype(B)


Latex:
H    \mvdash{}  istype(A  +  B)

    BY  unionIsType  ()
   
    H    \mvdash{}  istype(A)
    H    \mvdash{}  istype(B)



Date html generated: 2019_06_20-PM-04_11_54
Last ObjectModification: 2018_09_25-PM-00_13_37

Theory : rules


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