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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 7965 |
. 2
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2 | 1 | mulid1i 8021 |
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-resscn 7964 ax-1cn 7965 ax-icn 7967 ax-addcl 7968 ax-mulcl 7970 ax-mulcom 7973 ax-mulass 7975 ax-distr 7976 ax-1rid 7979 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-v 2762 df-un 3157 df-in 3159 df-ss 3166 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-iota 5215 df-fv 5262 df-ov 5921 |
This theorem is referenced by: neg1mulneg1e1 9194 addltmul 9219 1exp 10639 expge1 10647 mulexp 10649 mulexpzap 10650 expaddzap 10654 m1expeven 10657 i4 10713 facp1 10801 binom 11627 prodf1 11685 prodfrecap 11689 fprodmul 11734 fprodrec 11772 fprodge1 11782 rpmul 12236 dvexp 14860 dvef 14873 lgslem3 15118 lgsval2lem 15126 lgsneg 15140 lgsdilem 15143 lgsdir 15151 lgsdi 15153 |
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