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| Mirrors > Home > ILE Home > Th. List > 10nn | GIF version | ||
| Description: 10 is a positive integer. (Contributed by NM, 8-Nov-2012.) (Revised by AV, 6-Sep-2021.) |
| Ref | Expression |
|---|---|
| 10nn | ⊢ ;10 ∈ ℕ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 9p1e10 9714 | . 2 ⊢ (9 + 1) = ;10 | |
| 2 | 9nn 9408 | . . 3 ⊢ 9 ∈ ℕ | |
| 3 | peano2nn 9251 | . . 3 ⊢ (9 ∈ ℕ → (9 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (9 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltrri 2308 | 1 ⊢ ;10 ∈ ℕ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2205 (class class class)co 6052 0cc0 8129 1c1 8130 + caddc 8132 ℕcn 9239 9c9 9297 ;cdc 9712 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 ax-sep 4230 ax-cnex 8220 ax-resscn 8221 ax-1cn 8222 ax-1re 8223 ax-icn 8224 ax-addcl 8225 ax-addrcl 8226 ax-mulcl 8227 ax-mulcom 8230 ax-addass 8231 ax-mulass 8232 ax-distr 8233 ax-1rid 8236 ax-0id 8237 ax-cnre 8240 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-iota 5314 df-fv 5362 df-ov 6055 df-inn 9240 df-2 9298 df-3 9299 df-4 9300 df-5 9301 df-6 9302 df-7 9303 df-8 9304 df-9 9305 df-dec 9713 |
| This theorem is referenced by: 10pos 9728 10re 9730 decnncl2 9735 declt 9739 decltc 9740 declti 9749 dec10p 9754 3dvds 12554 plendx 13430 pleid 13431 pleslid 13432 plendxnn 13433 imasvalstrd 13500 cnfldstr 14723 |
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