| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > oa0 | Structured version Visualization version GIF version | ||
| Description: Addition with zero. Proposition 8.3 of [TakeutiZaring] p. 57. Definition 2.3 of [Schloeder] p. 4. (Contributed by NM, 3-May-1995.) (Revised by Mario Carneiro, 8-Sep-2013.) |
| Ref | Expression |
|---|---|
| oa0 | ⊢ (𝐴 ∈ On → (𝐴 +o ∅) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0elon 6378 | . . 3 ⊢ ∅ ∈ On | |
| 2 | oav 8446 | . . 3 ⊢ ((𝐴 ∈ On ∧ ∅ ∈ On) → (𝐴 +o ∅) = (rec((𝑥 ∈ V ↦ suc 𝑥), 𝐴)‘∅)) | |
| 3 | 1, 2 | mpan2 692 | . 2 ⊢ (𝐴 ∈ On → (𝐴 +o ∅) = (rec((𝑥 ∈ V ↦ suc 𝑥), 𝐴)‘∅)) |
| 4 | rdg0g 8366 | . 2 ⊢ (𝐴 ∈ On → (rec((𝑥 ∈ V ↦ suc 𝑥), 𝐴)‘∅) = 𝐴) | |
| 5 | 3, 4 | eqtrd 2771 | 1 ⊢ (𝐴 ∈ On → (𝐴 +o ∅) = 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 Vcvv 3429 ∅c0 4273 ↦ cmpt 5166 Oncon0 6323 suc csuc 6325 ‘cfv 6498 (class class class)co 7367 reccrdg 8348 +o coa 8402 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 ax-un 7689 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-oadd 8409 |
| This theorem is referenced by: oa1suc 8466 oacl 8470 oa0r 8473 om0r 8474 oawordri 8485 oaord1 8486 oaword1 8487 oawordeulem 8489 oa00 8494 oaass 8496 oarec 8497 odi 8514 oeoalem 8532 nna0 8540 nna0r 8545 nnm0r 8546 nnawordi 8557 naddoa 8638 cantnflt 9593 fineqvnttrclse 35268 rdgeqoa 37686 oa0suclim 43703 cantnfresb 43752 dflim5 43757 omabs2 43760 tfsconcatb0 43772 ofoafo 43784 ofoaid1 43786 naddcnff 43790 naddcnffo 43792 oaun3lem1 43802 naddgeoa 43822 naddonnn 43823 naddwordnexlem4 43829 |
| Copyright terms: Public domain | W3C validator |