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Theorem iocleubd 46388
Description: An element of a left-open right-closed interval is smaller than or equal to its upper bound. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
iocleubd.1 (𝜑𝐴 ∈ ℝ*)
iocleubd.2 (𝜑𝐵 ∈ ℝ*)
iocleubd.3 (𝜑𝐶 ∈ (𝐴(,]𝐵))
Assertion
Ref Expression
iocleubd (𝜑𝐶𝐵)

Proof of Theorem iocleubd
StepHypRef Expression
1 iocleubd.1 . 2 (𝜑𝐴 ∈ ℝ*)
2 iocleubd.2 . 2 (𝜑𝐵 ∈ ℝ*)
3 iocleubd.3 . 2 (𝜑𝐶 ∈ (𝐴(,]𝐵))
4 iocleub 46333 . 2 ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝐶 ∈ (𝐴(,]𝐵)) → 𝐶𝐵)
51, 2, 3, 4syl3anc 1398 1 (𝜑𝐶𝐵)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wcel 2145   class class class wbr 5103  (class class class)co 7413  *cxr 11266  cle 11268  (,]cioc 13399
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2732  ax-sep 5251  ax-pr 5398  ax-un 7736  ax-cnex 11180  ax-resscn 11181
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-sbc 3740  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-opab 5168  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-iota 6489  df-fun 6535  df-fv 6541  df-ov 7416  df-oprab 7417  df-mpo 7418  df-xr 11271  df-ioc 13403
This theorem is used by:  preimaiocmnf  46390  fourierdlem48  46982  fourierdlem49  46983  smfsuplem1  47639
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