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Mirrors > Home > ILE Home > Th. List > eqcomi | GIF version |
Description: Inference from commutative law for class equality. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
eqcomi.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
eqcomi | ⊢ 𝐵 = 𝐴 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqcomi.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | eqcom 2083 | . 2 ⊢ (𝐴 = 𝐵 ↔ 𝐵 = 𝐴) | |
3 | 1, 2 | mpbi 143 | 1 ⊢ 𝐵 = 𝐴 |
Colors of variables: wff set class |
Syntax hints: = wceq 1284 |
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-5 1376 ax-gen 1378 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-cleq 2074 |
This theorem is referenced by: eqtr2i 2102 eqtr3i 2103 eqtr4i 2104 syl5eqr 2127 syl5reqr 2128 syl6eqr 2131 syl6reqr 2132 eqeltrri 2152 eleqtrri 2154 syl5eqelr 2166 syl6eleqr 2172 abid2 2199 abid2f 2243 eqnetrri 2270 neeqtrri 2274 eqsstr3i 3030 sseqtr4i 3032 syl5eqssr 3044 syl6sseqr 3046 difdif2ss 3221 inrab2 3237 dfopg 3568 opid 3588 eqbrtrri 3806 breqtrri 3810 syl6breqr 3825 pwin 4037 limon 4257 tfis 4324 dfdm2 4872 cnvresid 4993 fores 5135 funcoeqres 5177 f1oprg 5188 fmptpr 5376 fsnunres 5385 riotaprop 5511 fo1st 5804 fo2nd 5805 phplem4 6341 snnen2og 6345 phplem4on 6353 caucvgsrlembound 6970 ax0id 7044 1p1e2 8155 1e2m1 8157 2p1e3 8165 3p1e4 8167 4p1e5 8168 5p1e6 8169 6p1e7 8170 7p1e8 8171 8p1e9 8172 div4p1lem1div2 8284 0mnnnnn0 8320 zeo 8452 num0u 8487 numsucc 8516 decsucc 8517 1e0p1 8518 nummac 8521 decsubi 8539 decmul1 8540 decmul10add 8545 6p5lem 8546 10m1e9 8572 5t5e25 8579 6t6e36 8584 8t6e48 8595 decbin3 8618 infrenegsupex 8682 ige3m2fz 9068 fseq1p1m1 9111 fz0tp 9135 1fv 9149 fzo0to42pr 9229 fzosplitprm1 9243 expnegap0 9484 3dec 9642 imi 9787 3dvdsdec 10264 3dvds2dec 10265 flodddiv4 10334 lcmneg 10456 ex-ceil 10564 ex-gcd 10568 bdceqir 10635 bj-ssom 10731 |
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