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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 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-1cn 8262 |
. 2
| |
| 2 | 1 | mulridi 8318 |
1
|
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8261 ax-1cn 8262 ax-icn 8264 ax-addcl 8265 ax-mulcl 8267 ax-mulcom 8270 ax-mulass 8272 ax-distr 8273 ax-1rid 8276 ax-cnre 8280 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-iota 5332 df-fv 5380 df-ov 6078 |
| This theorem is referenced by: neg1mulneg1e1 9496 addltmul 9521 1exp 10983 expge1 10991 mulexp 10993 mulexpzap 10994 expaddzap 10998 m1expeven 11001 i4 11057 facp1 11146 hashf1 11265 binom 12229 prodf1 12287 prodfrecap 12291 fprodmul 12336 fprodrec 12374 fprodge1 12384 rpmul 12854 dvexp 15735 dvef 15751 lgslem3 16035 lgsval2lem 16043 lgsneg 16057 lgsdilem 16060 lgsdir 16068 lgsdi 16070 lgsquad2lem1 16114 lgsquad2lem2 16115 |
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