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| Mirrors > Home > ILE Home > Th. List > nnasuc | GIF version | ||
| Description: Addition with successor. Theorem 4I(A2) of [Enderton] p. 79. (Contributed by NM, 20-Sep-1995.) (Revised by Mario Carneiro, 14-Nov-2014.) |
| Ref | Expression |
|---|---|
| nnasuc | ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ ω) → (𝐴 +o suc 𝐵) = suc (𝐴 +o 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnon 4723 | . 2 ⊢ (𝐴 ∈ ω → 𝐴 ∈ On) | |
| 2 | onasuc 6690 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ ω) → (𝐴 +o suc 𝐵) = suc (𝐴 +o 𝐵)) | |
| 3 | 1, 2 | sylan 283 | 1 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ ω) → (𝐴 +o suc 𝐵) = suc (𝐴 +o 𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1398 ∈ wcel 2203 Oncon0 4475 suc csuc 4477 ωcom 4703 (class class class)co 6041 +o coa 6635 |
| 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-in1 619 ax-in2 620 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-13 2205 ax-14 2206 ax-ext 2214 ax-coll 4218 ax-sep 4221 ax-nul 4229 ax-pow 4279 ax-pr 4314 ax-un 4545 ax-setind 4650 ax-iinf 4701 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-nul 3506 df-pw 3667 df-sn 3688 df-pr 3689 df-op 3691 df-uni 3908 df-int 3943 df-iun 3986 df-br 4103 df-opab 4165 df-mpt 4166 df-tr 4202 df-id 4405 df-iord 4478 df-on 4480 df-suc 4483 df-iom 4704 df-xp 4746 df-rel 4747 df-cnv 4748 df-co 4749 df-dm 4750 df-rn 4751 df-res 4752 df-ima 4753 df-iota 5303 df-fun 5345 df-fn 5346 df-f 5347 df-f1 5348 df-fo 5349 df-f1o 5350 df-fv 5351 df-ov 6044 df-oprab 6045 df-mpo 6046 df-1st 6325 df-2nd 6326 df-recs 6527 df-irdg 6592 df-oadd 6642 |
| This theorem is referenced by: nna0r 6702 nnacl 6704 nnacom 6708 nnaass 6709 nndi 6710 nnmsucr 6712 nnaword 6735 nnaordex 6752 omgadd 11151 hashunlem 11153 |
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