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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 7967 |
. 2
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2 | 1 | mulid1i 8023 |
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 7966 ax-1cn 7967 ax-icn 7969 ax-addcl 7970 ax-mulcl 7972 ax-mulcom 7975 ax-mulass 7977 ax-distr 7978 ax-1rid 7981 ax-cnre 7985 |
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 3158 df-in 3160 df-ss 3167 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-iota 5216 df-fv 5263 df-ov 5922 |
This theorem is referenced by: neg1mulneg1e1 9197 addltmul 9222 1exp 10642 expge1 10650 mulexp 10652 mulexpzap 10653 expaddzap 10657 m1expeven 10660 i4 10716 facp1 10804 binom 11630 prodf1 11688 prodfrecap 11692 fprodmul 11737 fprodrec 11775 fprodge1 11785 rpmul 12239 dvexp 14890 dvef 14906 lgslem3 15159 lgsval2lem 15167 lgsneg 15181 lgsdilem 15184 lgsdir 15192 lgsdi 15194 lgsquad2lem1 15238 lgsquad2lem2 15239 |
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