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Mirrors > Home > MPE Home > Th. List > entr | Structured version Visualization version GIF version |
Description: Transitivity of equinumerosity. Theorem 3 of [Suppes] p. 92. (Contributed by NM, 9-Jun-1998.) |
Ref | Expression |
---|---|
entr | ⊢ ((𝐴 ≈ 𝐵 ∧ 𝐵 ≈ 𝐶) → 𝐴 ≈ 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ener 8558 | . . . 4 ⊢ ≈ Er V | |
2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → ≈ Er V) |
3 | 2 | ertr 8306 | . 2 ⊢ (⊤ → ((𝐴 ≈ 𝐵 ∧ 𝐵 ≈ 𝐶) → 𝐴 ≈ 𝐶)) |
4 | 3 | mptru 1544 | 1 ⊢ ((𝐴 ≈ 𝐵 ∧ 𝐵 ≈ 𝐶) → 𝐴 ≈ 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ⊤wtru 1538 Vcvv 3496 class class class wbr 5068 Er wer 8288 ≈ cen 8508 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-id 5462 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-er 8291 df-en 8512 |
This theorem is referenced by: entri 8565 snmapen1 8593 en2sn 8595 xpsnen2g 8612 omxpen 8621 enen1 8659 enen2 8660 map2xp 8689 pwen 8692 ssenen 8693 phplem4 8701 php3 8705 snnen2o 8709 fineqvlem 8734 ssfi 8740 en1eqsn 8750 dif1en 8753 unfi 8787 unxpwdom2 9054 infdifsn 9122 infdiffi 9123 karden 9326 xpnum 9382 cardidm 9390 ficardom 9392 carden2a 9397 carden2b 9398 isinffi 9423 pm54.43 9431 pr2ne 9433 en2eqpr 9435 en2eleq 9436 infxpenlem 9441 infxpidm2 9445 mappwen 9540 finnisoeu 9541 djuen 9597 djuenun 9598 dju1dif 9600 djuassen 9606 mapdjuen 9608 pwdjuen 9609 infdju1 9617 pwdju1 9618 pwdjuidm 9619 cardadju 9622 ficardun 9626 pwsdompw 9628 infxp 9639 infmap2 9642 ackbij1lem5 9648 ackbij1lem9 9652 ackbij1b 9663 fin4en1 9733 isfin4p1 9739 fin23lem23 9750 domtriomlem 9866 axcclem 9881 carden 9975 alephadd 10001 gchdjuidm 10092 gchxpidm 10093 gchpwdom 10094 gchhar 10103 tskuni 10207 fzen2 13340 hashdvds 16114 unbenlem 16246 unben 16247 4sqlem11 16293 pmtrfconj 18596 psgnunilem1 18623 odinf 18692 dfod2 18693 sylow2blem1 18747 sylow2 18753 simpgnsgd 19224 frlmisfrlm 20994 hmphindis 22407 dyadmbl 24203 fnpreimac 30418 padct 30457 f1ocnt 30527 volmeas 31492 sconnpi1 32488 lzenom 39374 fiphp3d 39423 frlmpwfi 39705 isnumbasgrplem3 39712 fiuneneq 39804 rp-isfinite5 39890 enrelmap 40350 enrelmapr 40351 enmappw 40352 uspgrymrelen 44035 |
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