Theorem qlaxr1i

Description: One of the conditions showing CH is an ortholattice. (This corresponds to axiom "ax-r1" in the Quantum Logic Explorer.) (Contributed by NM, 4-Aug-2004) (New usage is discouraged.)

	Ref	Expression
Hypotheses	qlaxr1.1	|- A e. CH
	qlaxr1.2	|- B e. CH
	qlaxr1.3	|- A = B
Assertion	qlaxr1i	|- B = A

Proof

Step	Hyp	Ref	Expression
1		qlaxr1.1	|- A e. CH
2		qlaxr1.2	|- B e. CH
3		qlaxr1.3	|- A = B
4	3	eqcomi	|- B = A