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Mirrors > Home > ILE Home > Th. List > 9p1e10 | Unicode version |
Description: 9 + 1 = 10. (Contributed by Mario Carneiro, 18-Apr-2015.) (Revised by Stanislas Polu, 7-Apr-2020.) (Revised by AV, 1-Aug-2021.) |
Ref | Expression |
---|---|
9p1e10 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-dec 9449 |
. 2
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2 | 9nn 9150 |
. . . . . 6
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3 | 1nn 8993 |
. . . . . 6
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4 | nnaddcl 9002 |
. . . . . 6
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5 | 2, 3, 4 | mp2an 426 |
. . . . 5
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6 | 5 | nncni 8992 |
. . . 4
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7 | 6 | mulid1i 8021 |
. . 3
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8 | 7 | oveq1i 5928 |
. 2
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9 | 6 | addid1i 8161 |
. 2
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10 | 1, 8, 9 | 3eqtrri 2219 |
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 4147 ax-cnex 7963 ax-resscn 7964 ax-1cn 7965 ax-1re 7966 ax-icn 7967 ax-addcl 7968 ax-addrcl 7969 ax-mulcl 7970 ax-mulcom 7973 ax-addass 7974 ax-mulass 7975 ax-distr 7976 ax-1rid 7979 ax-0id 7980 ax-cnre 7983 |
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 3157 df-in 3159 df-ss 3166 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-int 3871 df-br 4030 df-iota 5215 df-fv 5262 df-ov 5921 df-inn 8983 df-2 9041 df-3 9042 df-4 9043 df-5 9044 df-6 9045 df-7 9046 df-8 9047 df-9 9048 df-dec 9449 |
This theorem is referenced by: dfdec10 9451 10nn 9463 le9lt10 9474 decsucc 9488 5p5e10 9518 6p4e10 9519 7p3e10 9522 8p2e10 9527 9p2e11 9534 10m1e9 9543 9lt10 9578 sq10e99m1 10784 3dvdsdec 12006 3dvds2dec 12007 |
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