Theorem eluzelz2 45790

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

Step	Hyp	Ref	Expression
1		eluzelz2.1	. . . 4 ⊢ 𝑍 = (ℤ≥‘𝑀)
2	1	eleq2i 2829	. . 3 ⊢ (𝑁 ∈ 𝑍 ↔ 𝑁 ∈ (ℤ≥‘𝑀))
3	2	biimpi 216	. 2 ⊢ (𝑁 ∈ 𝑍 → 𝑁 ∈ (ℤ≥‘𝑀))
4		eluzelz 12775	. 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℤ)
5	3, 4	syl 17	1 ⊢ (𝑁 ∈ 𝑍 → 𝑁 ∈ ℤ)

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2114  ‘cfv 6502  ℤcz 12502  ℤ_≥cuz 12765

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-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5245  ax-nul 5255  ax-pr 5381  ax-cnex 11096  ax-resscn 11097

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3402  df-v 3444  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-pw 4558  df-sn 4583  df-pr 4585  df-op 4589  df-uni 4866  df-br 5101  df-opab 5163  df-mpt 5182  df-id 5529  df-xp 5640  df-rel 5641  df-cnv 5642  df-co 5643  df-dm 5644  df-rn 5645  df-res 5646  df-ima 5647  df-iota 6458  df-fun 6504  df-fn 6505  df-f 6506  df-fv 6510  df-ov 7373  df-neg 11381  df-z 12503  df-uz 12766

This theorem is referenced by:  eluzelz2d  45800  uzublem  45817  uzinico  45948  limsupubuzlem  46099  limsupmnfuzlem  46113  limsupre3uzlem  46122  limsupvaluz2  46125  supcnvlimsup  46127  xlimclim2lem  46226  climxlim2  46233  xlimliminflimsup  46249  smflimmpt  47197  smflimsuplem3  47209  smflimsuplem4  47210  smflimsuplem5  47211  smflimsuplem6  47212  smflimsuplem7  47213  smflimsuplem8  47214  smflimsupmpt  47216  smfliminflem  47217  smfliminfmpt  47219