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Theorem eluzelz2 46335
Description: A member of an upper set of integers is an integer. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypothesis
Ref Expression
eluzelz2.1 𝑍 = (ℤ≥‘𝑀)
Assertion
Ref Expression
eluzelz2 (𝑁 ∈ 𝑍 → 𝑁 ∈ ℤ)

Proof of Theorem eluzelz2
StepHypRef Expression
1 eluzelz2.1 . . . 4 𝑍 = (ℤ≥‘𝑀)
21eleq2i 2852 . . 3 (𝑁 ∈ 𝑍 ↔ 𝑁 ∈ (ℤ≥‘𝑀))
32biimpi 219 . 2 (𝑁 ∈ 𝑍 → 𝑁 ∈ (ℤ≥‘𝑀))
4 eluzelz 12944 . 2 (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℤ)
53, 4syl 18 1 (𝑁 ∈ 𝑍 → 𝑁 ∈ ℤ)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2145  ‘cfv 6527  ℤcz 12662  ℤ≥cuz 12934
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 5248  ax-nul 5259  ax-pr 5390  ax-cnex 11227  ax-resscn 11228
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  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-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4584  df-pr 4586  df-op 4590  df-uni 4867  df-br 5103  df-opab 5167  df-mpt 5186  df-id 5542  df-xp 5653  df-rel 5654  df-cnv 5655  df-co 5656  df-dm 5657  df-rn 5658  df-res 5659  df-ima 5660  df-iota 6483  df-fun 6529  df-fn 6530  df-f 6531  df-fv 6535  df-ov 7411  df-neg 11515  df-z 12663  df-uz 12935
This theorem is used by:  eluzelz2d  46345  uzublem  46362  uzinico  46493  limsupubuzlem  46644  limsupmnfuzlem  46658  limsupre3uzlem  46667  limsupvaluz2  46670  supcnvlimsup  46672  xlimclim2lem  46771  climxlim2  46778  xlimliminflimsup  46794  smflimmpt  47742  smflimsuplem3  47754  smflimsuplem4  47755  smflimsuplem5  47756  smflimsuplem6  47757  smflimsuplem7  47758  smflimsuplem8  47759  smflimsupmpt  47761  smfliminflem  47762  smfliminfmpt  47764
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