Theorem leidd

Description: 'Less than or equal to' is reflexive. (Contributed by Mario Carneiro, 27-May-2016)

	Ref	Expression
Hypothesis	leidd.1	$$⊢\phi \to A\in ℝ$$
Assertion	leidd	$$⊢\phi \to A\le A$$

Proof

Step	Hyp	Ref	Expression
1		leidd.1	$$⊢\phi \to A\in ℝ$$
2		leid	$$⊢A\in ℝ\to A\le A$$
3	1 2	syl	$$⊢\phi \to A\le A$$