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| Mirrors > Home > ILE Home > Th. List > eluz | GIF version | ||
| Description: Membership in an upper set of integers. (Contributed by NM, 2-Oct-2005.) |
| Ref | Expression |
|---|---|
| eluz | ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 ∈ (ℤ≥‘𝑀) ↔ 𝑀 ≤ 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eluz1 9935 | . 2 ⊢ (𝑀 ∈ ℤ → (𝑁 ∈ (ℤ≥‘𝑀) ↔ (𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁))) | |
| 2 | 1 | baibd 935 | 1 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 ∈ (ℤ≥‘𝑀) ↔ 𝑀 ≤ 𝑁)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ↔ wb 105 ∈ wcel 2209 class class class wbr 4130 ‘cfv 5377 ≤ cle 8362 ℤcz 9649 ℤ≥cuz 9931 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-cnex 8271 ax-resscn 8272 |
| This proof depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fv 5385 df-ov 6088 df-neg 8502 df-z 9650 df-uz 9932 |
| This theorem is used by: uzneg 9951 uztric 9954 uzm1 9963 eluzdc 10020 fzn 10457 fzsplit2 10466 fzsplit3 10469 fznn 10507 uzsplit 10510 elfz2nn0 10530 fzouzsplit 10599 exfzdc 10670 zsupcllemstep 10673 zsupcl 10675 infssuzex 10677 infssfzcldc 10680 infssfzledc 10681 fzfig 10881 faclbnd 11194 seq3coll 11309 cvg1nlemcau 11765 cvg1nlemres 11766 summodclem2a 12166 fsum0diaglem 12225 mertenslemi1 12320 prodmodclem2a 12361 pcpremul 13094 pcdvdsb 13121 pcadd 13141 pcfac 13151 pcbc 13152 prmunb 13163 ballotfilem2 13279 ballotfilemimin 13300 gzsumfzval 13762 chtublem 16217 bcmax 16227 bpos1lem 16231 bposlem1 16233 uzdcinzz 16948 |
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