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Axiom ax-ia3 101
Description: 'And' introduction. Axiom 3 of 10 for intuitionistic logic. (Contributed by Mario Carneiro, 31-Jan-2015.)
Assertion
Ref Expression
ax-ia3

Detailed syntax breakdown of Axiom ax-ia3
StepHypRef Expression
1 wph . 2
2 wps . . 3
31, 2wa 97 . . 3
42, 3wi 4 . 2
51, 4wi 4 1
Colors of variables: wff set class
This axiom is referenced by:  ex  108  pm5.54dc  826  pclem6  1264  xoranor  1267  ax10oe  1675  2pwuninelg  5839  dmaddpq  6363  dmmulpq  6364  ltsopr  6568  ax1hfs  9167
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