Theorem leeq2d 44543

Description: Specialization of breq2d 5112 to reals and less than. (Contributed by Stanislas Polu, 9-Mar-2020.)

Hypotheses

Ref	Expression
leeq2d.1	⊢ (𝜑 → 𝐴 ≤ 𝐶)
leeq2d.2	⊢ (𝜑 → 𝐶 = 𝐷)
leeq2d.3	⊢ (𝜑 → 𝐴 ∈ ℝ)
leeq2d.4	⊢ (𝜑 → 𝐶 ∈ ℝ)

Assertion

Ref	Expression
leeq2d	⊢ (𝜑 → 𝐴 ≤ 𝐷)

Proof of Theorem leeq2d

Step	Hyp	Ref	Expression
1		leeq2d.1	. 2 ⊢ (𝜑 → 𝐴 ≤ 𝐶)
2		leeq2d.2	. 2 ⊢ (𝜑 → 𝐶 = 𝐷)
3	1, 2	breqtrd 5126	1 ⊢ (𝜑 → 𝐴 ≤ 𝐷)

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2114   class class class wbr 5100  ℝcr 11039   ≤ cle 11181

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2709

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2716  df-cleq 2729  df-clel 2812  df-rab 3402  df-v 3444  df-dif 3906  df-un 3908  df-ss 3920  df-nul 4288  df-if 4482  df-sn 4583  df-pr 4585  df-op 4589  df-br 5101

This theorem is referenced by: (None)