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Mirrors > Home > ILE Home > Th. List > entr | Unicode version |
Description: Transitivity of equinumerosity. Theorem 3 of [Suppes] p. 92. (Contributed by NM, 9-Jun-1998.) |
Ref | Expression |
---|---|
entr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ener 6347 |
. . . 4
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2 | 1 | a1i 9 |
. . 3
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3 | 2 | ertr 6208 |
. 2
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4 | 3 | trud 1294 |
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-13 1445 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-sep 3916 ax-pow 3968 ax-pr 3992 ax-un 4216 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 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-pw 3402 df-sn 3422 df-pr 3423 df-op 3425 df-uni 3622 df-br 3806 df-opab 3860 df-id 4076 df-xp 4397 df-rel 4398 df-cnv 4399 df-co 4400 df-dm 4401 df-rn 4402 df-res 4403 df-ima 4404 df-fun 4954 df-fn 4955 df-f 4956 df-f1 4957 df-fo 4958 df-f1o 4959 df-er 6193 df-en 6309 |
This theorem is referenced by: entri 6354 en2sn 6379 xpsnen2g 6394 enen1 6402 enen2 6403 phplem4 6411 snnen2og 6415 php5dom 6419 phplem4on 6423 dif1en 6435 dif1enen 6436 fisbth 6439 diffisn 6449 unsnfidcex 6464 unsnfidcel 6465 f1finf1o 6486 en1eqsn 6487 carden2bex 6569 pm54.43 6570 pr2ne 6572 frecfzen2 9561 hashunlem 9880 hashxp 9902 1nprm 10703 hashdvds 10804 unennn 10817 |
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