Definition df-6 9184

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 9176	. 2 class 6
2		c5 9175	. . 3 class 5
3		c1 8011	. . 3 class 1
4		caddc 8013	. . 3 class +
5	2, 3, 4	co 6007	. 2 class (5 + 1)
6	1, 5	wceq 1395	1 wff 6 = (5 + 1)

This definition is referenced by:  6re  9202  6pos  9222  6m1e5  9244  5p1e6  9259  3p3e6  9264  4p2e6  9265  5p2e7  9268  6nn  9287  5lt6  9301  6p6e12  9662  7p6e13  9666  8p6e14  9672  8p8e16  9674  9p6e15  9679  9p7e16  9680  6t6e36  9696  7t6e42  9701  8t6e48  9707  9t6e54  9714  lgsdir2lem3  15724  2lgsoddprmlem3d  15804