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Mirrors > Home > ILE Home > Th. List > 1t1e1 | Unicode version |
Description: 1 times 1 equals 1. (Contributed by David A. Wheeler, 7-Jul-2016.) |
Ref | Expression |
---|---|
1t1e1 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-1cn 7201 |
. 2
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2 | 1 | mulid1i 7253 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-resscn 7200 ax-1cn 7201 ax-icn 7203 ax-addcl 7204 ax-mulcl 7206 ax-mulcom 7209 ax-mulass 7211 ax-distr 7212 ax-1rid 7215 ax-cnre 7219 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1688 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ral 2358 df-rex 2359 df-v 2612 df-un 2986 df-in 2988 df-ss 2995 df-sn 3422 df-pr 3423 df-op 3425 df-uni 3622 df-br 3806 df-iota 4917 df-fv 4960 df-ov 5567 |
This theorem is referenced by: neg1mulneg1e1 8380 addltmul 8404 1exp 9672 expge1 9680 mulexp 9682 mulexpzap 9683 expaddzap 9687 m1expeven 9690 i4 9744 facp1 9824 rpmul 10705 |
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