Metamath Proof Explorer


Theorem 1nq

Description: The positive fraction 'one'. (Contributed by NM, 29-Oct-1995) (Revised by Mario Carneiro, 28-Apr-2013) (New usage is discouraged.)

Ref Expression
Assertion 1nq 1𝑸𝑸

Proof

Step Hyp Ref Expression
1 df-1nq 1𝑸=1𝑜1𝑜
2 1pi 1𝑜𝑵
3 pinq 1𝑜𝑵1𝑜1𝑜𝑸
4 2 3 ax-mp 1𝑜1𝑜𝑸
5 1 4 eqeltri 1𝑸𝑸