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| Mirrors > Home > MPE Home > Th. List > entr2i | Structured version Visualization version GIF version | ||
| Description: A chained equinumerosity inference. (Contributed by NM, 25-Sep-2004.) |
| Ref | Expression |
|---|---|
| entr2i.1 | ⊢ 𝐴 ≈ 𝐵 |
| entr2i.2 | ⊢ 𝐵 ≈ 𝐶 |
| Ref | Expression |
|---|---|
| entr2i | ⊢ 𝐶 ≈ 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | entr2i.1 | . . 3 ⊢ 𝐴 ≈ 𝐵 | |
| 2 | entr2i.2 | . . 3 ⊢ 𝐵 ≈ 𝐶 | |
| 3 | 1, 2 | entri 8982 | . 2 ⊢ 𝐴 ≈ 𝐶 |
| 4 | 3 | ensymi 8978 | 1 ⊢ 𝐶 ≈ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: class class class wbr 5110 ≈ cen 8918 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ral 3046 df-rex 3055 df-rab 3409 df-v 3452 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5111 df-opab 5173 df-id 5536 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-er 8674 df-en 8922 |
| This theorem is referenced by: nnenom 13952 bitsf1 16423 odinf 19500 re2ndc 24696 opnmblALT 25511 mbfimaopnlem 25563 poimirlem32 37653 |
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