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| Mirrors > Home > ILE Home > Th. List > 4t2e8 | Unicode version | ||
| Description: 4 times 2 equals 8. (Contributed by NM, 2-Aug-2004.) |
| Ref | Expression |
|---|---|
| 4t2e8 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 4cn 9315 |
. . 3
| |
| 2 | 1 | times2i 9368 |
. 2
|
| 3 | 4p4e8 9383 |
. 2
| |
| 4 | 2, 3 | eqtri 2253 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 ax-resscn 8219 ax-1cn 8220 ax-1re 8221 ax-icn 8222 ax-addcl 8223 ax-addrcl 8224 ax-mulcl 8225 ax-mulcom 8228 ax-addass 8229 ax-mulass 8230 ax-distr 8231 ax-1rid 8234 ax-cnre 8238 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-iota 5312 df-fv 5360 df-ov 6053 df-2 9296 df-3 9297 df-4 9298 df-5 9299 df-6 9300 df-7 9301 df-8 9302 |
| This theorem is referenced by: 8th4div3 9457 4t3e12 9806 sq4e2t8 10999 cu2 11000 sqoddm1div8 11055 cos2bnd 12446 2exp7 13132 2exp8 13133 lgsdir2lem2 15902 2lgslem3a 15966 2lgslem3b 15967 2lgslem3c 15968 2lgslem3d 15969 2lgsoddprmlem2 15979 2lgsoddprmlem3c 15982 2lgsoddprmlem3d 15983 ex-exp 16495 |
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