| Metamath Proof Explorer |
< Previous
Next >
Related theorems GIF version |
| Description: An integer is a real. |
| Ref | Expression |
|---|---|
| zret | ⊢ (A ∈ ℤ → A ∈ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elz 4565 | . 2 ⊢ (A ∈ ℤ ↔ (A ∈ ℝ ∧ (A = 0 ∨ A ∈ ℕ ∨ -A ∈ ℕ))) | |
| 2 | 1 | pm3.26bd 259 | 1 ⊢ (A ∈ ℤ → A ∈ ℝ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ∨ w3o 580 = wceq 1091 ∈ wcel 1092 ℝcr 4027 0cc0 4028 -cneg 4090 ℕcn 4093 ℤcz 4095 |
| This theorem is referenced by: zcnt 4568 zssre 4569 elnn0z 4574 elnnz1 4581 elnn0nn 4593 znnsubt 4595 zleltp1t 4598 sqznn 4600 peano2uz 4602 uzind 4603 uzwo 4605 uzwo3lem1 4614 zmax 4618 zbtwnre 4619 rebtwnz 4620 flgzt 4626 flidt 4627 qret 4631 zqt 4632 qbtwnre 4650 om2uzuz 4653 om2uzlt 4654 om2uzf1o 4656 uzrdgini 4658 sqr2irr 4782 znnenlem 4929 znnen 4930 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 df-rab 1208 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-br 2063 df-opab 2098 df-xp 2424 df-cnv 2426 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fv 2438 df-opr 3003 df-neg 4135 df-z 4564 |