Definition df-6 9346

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 9338	. 2 class 6
2		c5 9337	. . 3 class 5
3		c1 8170	. . 3 class 1
4		caddc 8172	. . 3 class +
5	2, 3, 4	co 6075	. 2 class (5 + 1)
6	1, 5	wceq 1402	1 wff 6 = (5 + 1)

This definition is referenced by:  6re  9364  6pos  9384  6m1e5  9406  5p1e6  9421  3p3e6  9426  4p2e6  9427  5p2e7  9430  6nn  9449  5lt6  9463  6p6e12  9829  7p6e13  9833  8p6e14  9839  8p8e16  9841  9p6e15  9846  9p7e16  9847  6t6e36  9863  7t6e42  9868  8t6e48  9874  9t6e54  9881  lgsdir2lem3  16063  2lgsoddprmlem3d  16143