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Mirrors > Home > ILE Home > Th. List > 8nn0 | GIF version |
Description: 8 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015.) |
Ref | Expression |
---|---|
8nn0 | ⊢ 8 ∈ ℕ0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 8nn 8911 | . 2 ⊢ 8 ∈ ℕ | |
2 | 1 | nnnn0i 9009 | 1 ⊢ 8 ∈ ℕ0 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1481 8c8 8801 ℕ0cn0 9001 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-cnex 7735 ax-resscn 7736 ax-1re 7738 ax-addrcl 7741 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-rex 2423 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-int 3780 df-br 3938 df-iota 5096 df-fv 5139 df-ov 5785 df-inn 8745 df-2 8803 df-3 8804 df-4 8805 df-5 8806 df-6 8807 df-7 8808 df-8 8809 df-n0 9002 |
This theorem is referenced by: 8p3e11 9286 8p4e12 9287 8p5e13 9288 8p6e14 9289 8p7e15 9290 8p8e16 9291 9p9e18 9299 6t4e24 9311 7t5e35 9317 8t3e24 9321 8t4e32 9322 8t5e40 9323 8t6e48 9324 8t7e56 9325 8t8e64 9326 9t3e27 9328 9t9e81 9334 ex-exp 13110 |
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