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Mirrors > Home > ILE Home > Th. List > nn0addcl | Unicode version |
Description: Closure of addition of nonnegative integers. (Contributed by Raph Levien, 10-Dec-2002.) (Proof shortened by Mario Carneiro, 17-Jul-2014.) |
Ref | Expression |
---|---|
nn0addcl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnsscn 8989 |
. 2
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2 | id 19 |
. . 3
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3 | df-n0 9244 |
. . 3
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4 | nnaddcl 9004 |
. . . 4
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5 | 4 | adantl 277 |
. . 3
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6 | 2, 3, 5 | un0addcl 9276 |
. 2
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7 | 1, 6 | mpan 424 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 ax-sep 4148 ax-cnex 7965 ax-resscn 7966 ax-1cn 7967 ax-1re 7968 ax-icn 7969 ax-addcl 7970 ax-addrcl 7971 ax-mulcl 7972 ax-addcom 7974 ax-addass 7976 ax-i2m1 7979 ax-0id 7982 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-int 3872 df-br 4031 df-iota 5216 df-fv 5263 df-ov 5922 df-inn 8985 df-n0 9244 |
This theorem is referenced by: nn0addcli 9280 peano2nn0 9283 nn0addcld 9300 nn0readdcl 9302 difelfznle 10204 elfzodifsumelfzo 10271 expadd 10655 faclbnd6 10818 facavg 10820 fsumnn0cl 11549 bcxmas 11635 eftlub 11836 4sqlem1 12529 nn0subm 14082 2sqlem7 15278 |
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