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Theorem wr4 199

Description: Weak R4.

Hypothesis

Ref	Expression
wr4.1

Assertion

Ref	Expression
wr4

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Proof of Theorem wr4

Step	Hyp	Ref	Expression
1		conb 122	. . 3
2	1	ax-r1 35	. 2
3		wr4.1	. 2
4	2, 3	ax-r2 36	1

Colors of variables: term

Syntax hints:   wb 1  wn 4   tb 5  wt 8

This theorem was proved from axioms:  ax-a1 30  ax-a2 31  ax-r1 35  ax-r2 36  ax-r4 37  ax-r5 38

This theorem depends on definitions:  df-b 39  df-a 40

This theorem is referenced by:  wran  369  wr2  371  wcomlem  382  wcbtr  411  wcomdr  421  wfh2  424  wfh3  425  wfh4  426  woml7  437

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