Definition df-6 8546

Description: Define the number 6. (Contributed by NM, 27-May-1999.)

Assertion

Ref	Expression
df-6	|- 6 = ( 5 + 1 )

Detailed syntax breakdown of Definition df-6

Step	Hyp	Ref	Expression
1		c6 8538	. 2 class 6
2		c5 8537	. . 3 class 5
3		c1 7412	. . 3 class 1
4		caddc 7414	. . 3 class +
5	2, 3, 4	co 5666	. 2 class ( 5 + 1 )
6	1, 5	wceq 1290	1 wff 6 = ( 5 + 1 )

This definition is referenced by:  6re  8564  6pos  8584  5p1e6  8614  3p3e6  8619  4p2e6  8620  5p2e7  8623  6nn  8642  5lt6  8656  6p6e12  9011  7p6e13  9015  8p6e14  9021  8p8e16  9023  9p6e15  9028  9p7e16  9029  6t6e36  9045  7t6e42  9050  8t6e48  9056  9t6e54  9063