Theorem equtr 1796

Description: A transitive law for equality. (Contributed by NM, 23-Aug-1993.)

Assertion

Ref	Expression
equtr

Proof of Theorem equtr

Step	Hyp	Ref	Expression
1		ax-7 1790	. 2
2	1	equcoms 1795	1

Syntax hints:  ->wi 4

This theorem is referenced by:  equtrr  1797  equequ1  1798  equviniv  1803  equvin  1804  ax6e  2002  equvini  2087  equvinOLD  2090  sbequi  2116  axsep  4572  bj-axsep  34379

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-6 1747  ax-7 1790

This theorem depends on definitions:  df-bi 185  df-ex 1613