Mathbox for Anthony Hart 
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Mirrors > Home > MPE Home > Th. List > Mathboxes > tbax3  Unicode version 
Description: The third of three axioms
in the TarskiBernays axiom system.
This axiom, along with axmp 8, tbax1 24889, and tbax2 24890, can be used to derive any theorem or rule that uses only . (Contributed by Anthony Hart, 16Aug2011.) (Proof modification is discouraged.) (New usage is discouraged.) 
Ref  Expression 

tbax3 
Step  Hyp  Ref  Expression 

1  peirce 172  1 
Colors of variables: wff set class 
Syntax hints: wi 4 
This theorem is referenced by: re1ax2lem 24893 re1ax2 24894 
This theorem was proved from axioms: ax1 5 ax2 6 ax3 7 axmp 8 
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